{
    "file_diffs": [
        {
            "old_file_content": "#\n# The Python Imaging Library.\n#\n# SPIDER image file handling\n#\n# History:\n# 2004-08-02    Created BB\n# 2006-03-02    added save method\n# 2006-03-13    added support for stack images\n#\n# Copyright (c) 2004 by Health Research Inc. (HRI) RENSSELAER, NY 12144.\n# Copyright (c) 2004 by William Baxter.\n# Copyright (c) 2004 by Secret Labs AB.\n# Copyright (c) 2004 by Fredrik Lundh.\n#\n\n##\n# Image plugin for the Spider image format.  This format is is used\n# by the SPIDER software, in processing image data from electron\n# microscopy and tomography.\n##\n\n#\n# SpiderImagePlugin.py\n#\n# The Spider image format is used by SPIDER software, in processing\n# image data from electron microscopy and tomography.\n#\n# Spider home page:\n# https://spider.wadsworth.org/spider_doc/spider/docs/spider.html\n#\n# Details about the Spider image format:\n# https://spider.wadsworth.org/spider_doc/spider/docs/image_doc.html\n#\n\nfrom __future__ import print_function\n\nfrom PIL import Image, ImageFile\nimport os\nimport struct\nimport sys\n\n\ndef isInt(f):\n    try:\n        i = int(f)\n        if f-i == 0:\n            return 1\n        else:\n            return 0\n    except ValueError:\n        return 0\n    except OverflowError:\n        return 0\n\niforms = [1, 3, -11, -12, -21, -22]\n\n\n# There is no magic number to identify Spider files, so just check a\n# series of header locations to see if they have reasonable values.\n# Returns no. of bytes in the header, if it is a valid Spider header,\n# otherwise returns 0\n\ndef isSpiderHeader(t):\n    h = (99,) + t   # add 1 value so can use spider header index start=1\n    # header values 1,2,5,12,13,22,23 should be integers\n    for i in [1, 2, 5, 12, 13, 22, 23]:\n        if not isInt(h[i]):\n            return 0\n    # check iform\n    iform = int(h[5])\n    if iform not in iforms:\n        return 0\n    # check other header values\n    labrec = int(h[13])   # no. records in file header\n    labbyt = int(h[22])   # total no. of bytes in header\n    lenbyt = int(h[23])   # record length in bytes\n    # print(\"labrec = %d, labbyt = %d, lenbyt = %d\" % (labrec,labbyt,lenbyt))\n    if labbyt != (labrec * lenbyt):\n        return 0\n    # looks like a valid header\n    return labbyt\n\n\ndef isSpiderImage(filename):\n    with open(filename, 'rb') as fp:\n        f = fp.read(92)   # read 23 * 4 bytes\n    t = struct.unpack('>23f', f)  # try big-endian first\n    hdrlen = isSpiderHeader(t)\n    if hdrlen == 0:\n        t = struct.unpack('<23f', f)  # little-endian\n        hdrlen = isSpiderHeader(t)\n    return hdrlen\n\n\nclass SpiderImageFile(ImageFile.ImageFile):\n\n    format = \"SPIDER\"\n    format_description = \"Spider 2D image\"\n    _close_exclusive_fp_after_loading = False\n\n    def _open(self):\n        # check header\n        n = 27 * 4  # read 27 float values\n        f = self.fp.read(n)\n\n        try:\n            self.bigendian = 1\n            t = struct.unpack('>27f', f)  # try big-endian first\n            hdrlen = isSpiderHeader(t)\n            if hdrlen == 0:\n                self.bigendian = 0\n                t = struct.unpack('<27f', f)  # little-endian\n                hdrlen = isSpiderHeader(t)\n            if hdrlen == 0:\n                raise SyntaxError(\"not a valid Spider file\")\n        except struct.error:\n            raise SyntaxError(\"not a valid Spider file\")\n\n        h = (99,) + t   # add 1 value : spider header index starts at 1\n        iform = int(h[5])\n        if iform != 1:\n            raise SyntaxError(\"not a Spider 2D image\")\n\n        self.size = int(h[12]), int(h[2])  # size in pixels (width, height)\n        self.istack = int(h[24])\n        self.imgnumber = int(h[27])\n\n        if self.istack == 0 and self.imgnumber == 0:\n            # stk=0, img=0: a regular 2D image\n            offset = hdrlen\n            self._nimages = 1\n        elif self.istack > 0 and self.imgnumber == 0:\n            # stk>0, img=0: Opening the stack for the first time\n            self.imgbytes = int(h[12]) * int(h[2]) * 4\n            self.hdrlen = hdrlen\n            self._nimages = int(h[26])\n            # Point to the first image in the stack\n            offset = hdrlen * 2\n            self.imgnumber = 1\n        elif self.istack == 0 and self.imgnumber > 0:\n            # stk=0, img>0: an image within the stack\n            offset = hdrlen + self.stkoffset\n            self.istack = 2  # So Image knows it's still a stack\n        else:\n            raise SyntaxError(\"inconsistent stack header values\")\n\n        if self.bigendian:\n            self.rawmode = \"F;32BF\"\n        else:\n            self.rawmode = \"F;32F\"\n        self.mode = \"F\"\n\n        self.tile = [\n            (\"raw\", (0, 0) + self.size, offset,\n                (self.rawmode, 0, 1))]\n        self.__fp = self.fp  # FIXME: hack\n\n    @property\n    def n_frames(self):\n        return self._nimages\n\n    @property\n    def is_animated(self):\n        return self._nimages > 1\n\n    # 1st image index is zero (although SPIDER imgnumber starts at 1)\n    def tell(self):\n        if self.imgnumber < 1:\n            return 0\n        else:\n            return self.imgnumber - 1\n\n    def seek(self, frame):\n        if self.istack == 0:\n            raise EOFError(\"attempt to seek in a non-stack file\")\n        if frame >= self._nimages:\n            raise EOFError(\"attempt to seek past end of file\")\n        self.stkoffset = self.hdrlen + frame * (self.hdrlen + self.imgbytes)\n        self.fp = self.__fp\n        self.fp.seek(self.stkoffset)\n        self._open()\n\n    # returns a byte image after rescaling to 0..255\n    def convert2byte(self, depth=255):\n        (minimum, maximum) = self.getextrema()\n        m = 1\n        if maximum != minimum:\n            m = depth / (maximum-minimum)\n        b = -m * minimum\n        return self.point(lambda i, m=m, b=b: i * m + b).convert(\"L\")\n\n    # returns a ImageTk.PhotoImage object, after rescaling to 0..255\n    def tkPhotoImage(self):\n        from PIL import ImageTk\n        return ImageTk.PhotoImage(self.convert2byte(), palette=256)\n\n\n# --------------------------------------------------------------------\n# Image series\n\n# given a list of filenames, return a list of images\ndef loadImageSeries(filelist=None):\n    \" create a list of Image.images for use in montage \"\n    if filelist is None or len(filelist) < 1:\n        return\n\n    imglist = []\n    for img in filelist:\n        if not os.path.exists(img):\n            print(\"unable to find %s\" % img)\n            continue\n        try:\n            im = Image.open(img).convert2byte()\n        except:\n            if not isSpiderImage(img):\n                print(img + \" is not a Spider image file\")\n            continue\n        im.info['filename'] = img\n        imglist.append(im)\n    return imglist\n\n\n# --------------------------------------------------------------------\n# For saving images in Spider format\n\ndef makeSpiderHeader(im):\n    nsam, nrow = im.size\n    lenbyt = nsam * 4  # There are labrec records in the header\n    labrec = 1024 / lenbyt\n    if 1024 % lenbyt != 0:\n        labrec += 1\n    labbyt = labrec * lenbyt\n    hdr = []\n    nvalues = int(labbyt / 4)\n    for i in range(nvalues):\n        hdr.append(0.0)\n\n    if len(hdr) < 23:\n        return []\n\n    # NB these are Fortran indices\n    hdr[1] = 1.0             # nslice (=1 for an image)\n    hdr[2] = float(nrow)     # number of rows per slice\n    hdr[5] = 1.0             # iform for 2D image\n    hdr[12] = float(nsam)    # number of pixels per line\n    hdr[13] = float(labrec)  # number of records in file header\n    hdr[22] = float(labbyt)  # total number of bytes in header\n    hdr[23] = float(lenbyt)  # record length in bytes\n\n    # adjust for Fortran indexing\n    hdr = hdr[1:]\n    hdr.append(0.0)\n    # pack binary data into a string\n    hdrstr = []\n    for v in hdr:\n        hdrstr.append(struct.pack('f', v))\n    return hdrstr\n\n\ndef _save(im, fp, filename):\n    if im.mode[0] != \"F\":\n        im = im.convert('F')\n\n    hdr = makeSpiderHeader(im)\n    if len(hdr) < 256:\n        raise IOError(\"Error creating Spider header\")\n\n    # write the SPIDER header\n    try:\n        fp = open(filename, 'wb')\n    except:\n        raise IOError(\"Unable to open %s for writing\" % filename)\n    fp.writelines(hdr)\n\n    rawmode = \"F;32NF\"  # 32-bit native floating point\n    ImageFile._save(im, fp, [(\"raw\", (0, 0)+im.size, 0, (rawmode, 0, 1))])\n\n    fp.close()\n\n\ndef _save_spider(im, fp, filename):\n    # get the filename extension and register it with Image\n    ext = os.path.splitext(filename)[1]\n    Image.register_extension(SpiderImageFile.format, ext)\n    _save(im, fp, filename)\n\n# --------------------------------------------------------------------\n\nImage.register_open(SpiderImageFile.format, SpiderImageFile)\nImage.register_save(SpiderImageFile.format, _save_spider)\n\nif __name__ == \"__main__\":\n\n    if not sys.argv[1:]:\n        print(\"Syntax: python SpiderImagePlugin.py [infile] [outfile]\")\n        sys.exit()\n\n    filename = sys.argv[1]\n    if not isSpiderImage(filename):\n        print(\"input image must be in Spider format\")\n        sys.exit()\n\n    outfile = \"\"\n    if len(sys.argv[1:]) > 1:\n        outfile = sys.argv[2]\n\n    im = Image.open(filename)\n    print(\"image: \" + str(im))\n    print(\"format: \" + str(im.format))\n    print(\"size: \" + str(im.size))\n    print(\"mode: \" + str(im.mode))\n    print(\"max, min: \", end=' ')\n    print(im.getextrema())\n\n    if outfile != \"\":\n        # perform some image operation\n        im = im.transpose(Image.FLIP_LEFT_RIGHT)\n        print(\n            \"saving a flipped version of %s as %s \" %\n            (os.path.basename(filename), outfile))\n        im.save(outfile, SpiderImageFile.format)\n",
            "new_file_content": "#\n# The Python Imaging Library.\n#\n# SPIDER image file handling\n#\n# History:\n# 2004-08-02    Created BB\n# 2006-03-02    added save method\n# 2006-03-13    added support for stack images\n#\n# Copyright (c) 2004 by Health Research Inc. (HRI) RENSSELAER, NY 12144.\n# Copyright (c) 2004 by William Baxter.\n# Copyright (c) 2004 by Secret Labs AB.\n# Copyright (c) 2004 by Fredrik Lundh.\n#\n\n##\n# Image plugin for the Spider image format.  This format is is used\n# by the SPIDER software, in processing image data from electron\n# microscopy and tomography.\n##\n\n#\n# SpiderImagePlugin.py\n#\n# The Spider image format is used by SPIDER software, in processing\n# image data from electron microscopy and tomography.\n#\n# Spider home page:\n# https://spider.wadsworth.org/spider_doc/spider/docs/spider.html\n#\n# Details about the Spider image format:\n# https://spider.wadsworth.org/spider_doc/spider/docs/image_doc.html\n#\n\nfrom __future__ import print_function\n\nfrom PIL import Image, ImageFile\nimport os\nimport struct\nimport sys\n\n\ndef isInt(f):\n    try:\n        i = int(f)\n        if f-i == 0:\n            return 1\n        else:\n            return 0\n    except ValueError:\n        return 0\n    except OverflowError:\n        return 0\n\niforms = [1, 3, -11, -12, -21, -22]\n\n\n# There is no magic number to identify Spider files, so just check a\n# series of header locations to see if they have reasonable values.\n# Returns no. of bytes in the header, if it is a valid Spider header,\n# otherwise returns 0\n\ndef isSpiderHeader(t):\n    h = (99,) + t   # add 1 value so can use spider header index start=1\n    # header values 1,2,5,12,13,22,23 should be integers\n    for i in [1, 2, 5, 12, 13, 22, 23]:\n        if not isInt(h[i]):\n            return 0\n    # check iform\n    iform = int(h[5])\n    if iform not in iforms:\n        return 0\n    # check other header values\n    labrec = int(h[13])   # no. records in file header\n    labbyt = int(h[22])   # total no. of bytes in header\n    lenbyt = int(h[23])   # record length in bytes\n    # print(\"labrec = %d, labbyt = %d, lenbyt = %d\" % (labrec,labbyt,lenbyt))\n    if labbyt != (labrec * lenbyt):\n        return 0\n    # looks like a valid header\n    return labbyt\n\n\ndef isSpiderImage(filename):\n    with open(filename, 'rb') as fp:\n        f = fp.read(92)   # read 23 * 4 bytes\n    t = struct.unpack('>23f', f)  # try big-endian first\n    hdrlen = isSpiderHeader(t)\n    if hdrlen == 0:\n        t = struct.unpack('<23f', f)  # little-endian\n        hdrlen = isSpiderHeader(t)\n    return hdrlen\n\n\nclass SpiderImageFile(ImageFile.ImageFile):\n\n    format = \"SPIDER\"\n    format_description = \"Spider 2D image\"\n    _close_exclusive_fp_after_loading = False\n\n    def _open(self):\n        # check header\n        n = 27 * 4  # read 27 float values\n        f = self.fp.read(n)\n\n        try:\n            self.bigendian = 1\n            t = struct.unpack('>27f', f)  # try big-endian first\n            hdrlen = isSpiderHeader(t)\n            if hdrlen == 0:\n                self.bigendian = 0\n                t = struct.unpack('<27f', f)  # little-endian\n                hdrlen = isSpiderHeader(t)\n            if hdrlen == 0:\n                raise SyntaxError(\"not a valid Spider file\")\n        except struct.error:\n            raise SyntaxError(\"not a valid Spider file\")\n\n        h = (99,) + t   # add 1 value : spider header index starts at 1\n        iform = int(h[5])\n        if iform != 1:\n            raise SyntaxError(\"not a Spider 2D image\")\n\n        self.size = int(h[12]), int(h[2])  # size in pixels (width, height)\n        self.istack = int(h[24])\n        self.imgnumber = int(h[27])\n\n        if self.istack == 0 and self.imgnumber == 0:\n            # stk=0, img=0: a regular 2D image\n            offset = hdrlen\n            self._nimages = 1\n        elif self.istack > 0 and self.imgnumber == 0:\n            # stk>0, img=0: Opening the stack for the first time\n            self.imgbytes = int(h[12]) * int(h[2]) * 4\n            self.hdrlen = hdrlen\n            self._nimages = int(h[26])\n            # Point to the first image in the stack\n            offset = hdrlen * 2\n            self.imgnumber = 1\n        elif self.istack == 0 and self.imgnumber > 0:\n            # stk=0, img>0: an image within the stack\n            offset = hdrlen + self.stkoffset\n            self.istack = 2  # So Image knows it's still a stack\n        else:\n            raise SyntaxError(\"inconsistent stack header values\")\n\n        if self.bigendian:\n            self.rawmode = \"F;32BF\"\n        else:\n            self.rawmode = \"F;32F\"\n        self.mode = \"F\"\n\n        self.tile = [\n            (\"raw\", (0, 0) + self.size, offset,\n                (self.rawmode, 0, 1))]\n        self.__fp = self.fp  # FIXME: hack\n\n    @property\n    def n_frames(self):\n        return self._nimages\n\n    @property\n    def is_animated(self):\n        return self._nimages > 1\n\n    # 1st image index is zero (although SPIDER imgnumber starts at 1)\n    def tell(self):\n        if self.imgnumber < 1:\n            return 0\n        else:\n            return self.imgnumber - 1\n\n    def seek(self, frame):\n        if self.istack == 0:\n            raise EOFError(\"attempt to seek in a non-stack file\")\n        if frame >= self._nimages:\n            raise EOFError(\"attempt to seek past end of file\")\n        self.stkoffset = self.hdrlen + frame * (self.hdrlen + self.imgbytes)\n        self.fp = self.__fp\n        self.fp.seek(self.stkoffset)\n        self._open()\n\n    # returns a byte image after rescaling to 0..255\n    def convert2byte(self, depth=255):\n        (minimum, maximum) = self.getextrema()\n        m = 1\n        if maximum != minimum:\n            m = depth / (maximum-minimum)\n        b = -m * minimum\n        return self.point(lambda i, m=m, b=b: i * m + b).convert(\"L\")\n\n    # returns a ImageTk.PhotoImage object, after rescaling to 0..255\n    def tkPhotoImage(self):\n        from PIL import ImageTk\n        return ImageTk.PhotoImage(self.convert2byte(), palette=256)\n\n\n# --------------------------------------------------------------------\n# Image series\n\n# given a list of filenames, return a list of images\ndef loadImageSeries(filelist=None):\n    \" create a list of Image.images for use in montage \"\n    if filelist is None or len(filelist) < 1:\n        return\n\n    imglist = []\n    for img in filelist:\n        if not os.path.exists(img):\n            print(\"unable to find %s\" % img)\n            continue\n        try:\n            im = Image.open(img).convert2byte()\n        except:\n            if not isSpiderImage(img):\n                print(img + \" is not a Spider image file\")\n            continue\n        im.info['filename'] = img\n        imglist.append(im)\n    return imglist\n\n\n# --------------------------------------------------------------------\n# For saving images in Spider format\n\ndef makeSpiderHeader(im):\n    nsam, nrow = im.size\n    lenbyt = nsam * 4  # There are labrec records in the header\n    labrec = 1024 / lenbyt\n    if 1024 % lenbyt != 0:\n        labrec += 1\n    labbyt = labrec * lenbyt\n    hdr = []\n    nvalues = int(labbyt / 4)\n    for i in range(nvalues):\n        hdr.append(0.0)\n\n    if len(hdr) < 23:\n        return []\n\n    # NB these are Fortran indices\n    hdr[1] = 1.0             # nslice (=1 for an image)\n    hdr[2] = float(nrow)     # number of rows per slice\n    hdr[5] = 1.0             # iform for 2D image\n    hdr[12] = float(nsam)    # number of pixels per line\n    hdr[13] = float(labrec)  # number of records in file header\n    hdr[22] = float(labbyt)  # total number of bytes in header\n    hdr[23] = float(lenbyt)  # record length in bytes\n\n    # adjust for Fortran indexing\n    hdr = hdr[1:]\n    hdr.append(0.0)\n    # pack binary data into a string\n    hdrstr = []\n    for v in hdr:\n        hdrstr.append(struct.pack('f', v))\n    return hdrstr\n\n\ndef _save(im, fp, filename):\n    if im.mode[0] != \"F\":\n        im = im.convert('F')\n\n    hdr = makeSpiderHeader(im)\n    if len(hdr) < 256:\n        raise IOError(\"Error creating Spider header\")\n\n    # write the SPIDER header\n    fp.writelines(hdr)\n\n    rawmode = \"F;32NF\"  # 32-bit native floating point\n    ImageFile._save(im, fp, [(\"raw\", (0, 0)+im.size, 0, (rawmode, 0, 1))])\n\n\ndef _save_spider(im, fp, filename):\n    # get the filename extension and register it with Image\n    ext = os.path.splitext(filename)[1]\n    Image.register_extension(SpiderImageFile.format, ext)\n    _save(im, fp, filename)\n\n# --------------------------------------------------------------------\n\nImage.register_open(SpiderImageFile.format, SpiderImageFile)\nImage.register_save(SpiderImageFile.format, _save_spider)\n\nif __name__ == \"__main__\":\n\n    if not sys.argv[1:]:\n        print(\"Syntax: python SpiderImagePlugin.py [infile] [outfile]\")\n        sys.exit()\n\n    filename = sys.argv[1]\n    if not isSpiderImage(filename):\n        print(\"input image must be in Spider format\")\n        sys.exit()\n\n    outfile = \"\"\n    if len(sys.argv[1:]) > 1:\n        outfile = sys.argv[2]\n\n    im = Image.open(filename)\n    print(\"image: \" + str(im))\n    print(\"format: \" + str(im.format))\n    print(\"size: \" + str(im.size))\n    print(\"mode: \" + str(im.mode))\n    print(\"max, min: \", end=' ')\n    print(im.getextrema())\n\n    if outfile != \"\":\n        # perform some image operation\n        im = im.transpose(Image.FLIP_LEFT_RIGHT)\n        print(\n            \"saving a flipped version of %s as %s \" %\n            (os.path.basename(filename), outfile))\n        im.save(outfile, SpiderImageFile.format)\n",
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                    "path": "PIL/SpiderImagePlugin.py"
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                "new_commit_hash": "a821fcf87",
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            "binary_line": null,
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                            {
                                "content": "        raise IOError(\"Error creating Spider header\")",
                                "type": "context"
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                                "type": "context"
                            },
                            {
                                "content": "    # write the SPIDER header",
                                "type": "context"
                            },
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                                "content": "    try:",
                                "type": "deleted"
                            },
                            {
                                "content": "        fp = open(filename, 'wb')",
                                "type": "deleted"
                            },
                            {
                                "content": "    except:",
                                "type": "deleted"
                            },
                            {
                                "content": "        raise IOError(\"Unable to open %s for writing\" % filename)",
                                "type": "deleted"
                            },
                            {
                                "content": "    fp.writelines(hdr)",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
                            },
                            {
                                "content": "    rawmode = \"F;32NF\"  # 32-bit native floating point",
                                "type": "context"
                            },
                            {
                                "content": "    ImageFile._save(im, fp, [(\"raw\", (0, 0)+im.size, 0, (rawmode, 0, 1))])",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
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                                "content": "    fp.close()",
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                                "content": "def _save_spider(im, fp, filename):",
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                                "content": "    # get the filename extension and register it with Image",
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                            "content": "def _save(im, fp, filename):\n    if im.mode[0] != \"F\":\n        im = im.convert('F')\n\n    hdr = makeSpiderHeader(im)\n    if len(hdr) < 256:\n        raise IOError(\"Error creating Spider header\")\n\n    # write the SPIDER header\n    try:\n        fp = open(filename, 'wb')\n    except:\n        raise IOError(\"Unable to open %s for writing\" % filename)\n    fp.writelines(hdr)\n\n    rawmode = \"F;32NF\"  # 32-bit native floating point\n    ImageFile._save(im, fp, [(\"raw\", (0, 0)+im.size, 0, (rawmode, 0, 1))])\n\n    fp.close()",
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        },
        {
            "old_file_content": "from helper import unittest, PillowTestCase, hopper\n\nfrom PIL import Image\nfrom PIL import ImageSequence\nfrom PIL import SpiderImagePlugin\n\nTEST_FILE = \"Tests/images/hopper.spider\"\n\n\nclass TestImageSpider(PillowTestCase):\n\n    def test_sanity(self):\n        im = Image.open(TEST_FILE)\n        im.load()\n        self.assertEqual(im.mode, \"F\")\n        self.assertEqual(im.size, (128, 128))\n        self.assertEqual(im.format, \"SPIDER\")\n\n    def test_save(self):\n        # Arrange\n        temp = self.tempfile('temp.spider')\n        im = hopper()\n\n        # Act\n        im.save(temp, \"SPIDER\")\n\n        # Assert\n        im2 = Image.open(temp)\n        self.assertEqual(im2.mode, \"F\")\n        self.assertEqual(im2.size, (128, 128))\n        self.assertEqual(im2.format, \"SPIDER\")\n\n    def test_isSpiderImage(self):\n        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))\n\n    def test_tell(self):\n        # Arrange\n        im = Image.open(TEST_FILE)\n\n        # Act\n        index = im.tell()\n\n        # Assert\n        self.assertEqual(index, 0)\n\n    def test_n_frames(self):\n        im = Image.open(TEST_FILE)\n        self.assertEqual(im.n_frames, 1)\n        self.assertFalse(im.is_animated)\n\n    def test_loadImageSeries(self):\n        # Arrange\n        not_spider_file = \"Tests/images/hopper.ppm\"\n        file_list = [TEST_FILE, not_spider_file, \"path/not_found.ext\"]\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertEqual(len(img_list), 1)\n        self.assertIsInstance(img_list[0], Image.Image)\n        self.assertEqual(img_list[0].size, (128, 128))\n\n    def test_loadImageSeries_no_input(self):\n        # Arrange\n        file_list = None\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertIsNone(img_list)\n\n    def test_isInt_not_a_number(self):\n        # Arrange\n        not_a_number = \"a\"\n\n        # Act\n        ret = SpiderImagePlugin.isInt(not_a_number)\n\n        # Assert\n        self.assertEqual(ret, 0)\n\n    def test_invalid_file(self):\n        invalid_file = \"Tests/images/invalid.spider\"\n\n        self.assertRaises(IOError, Image.open, invalid_file)\n\n    def test_nonstack_file(self):\n        im = Image.open(TEST_FILE)\n\n        self.assertRaises(EOFError, im.seek, 0)\n\n    def test_nonstack_dos(self):\n        im = Image.open(TEST_FILE)\n        for i, frame in enumerate(ImageSequence.Iterator(im)):\n            if i > 1:\n                self.fail(\"Non-stack DOS file test failed\")\n\n\nif __name__ == '__main__':\n    unittest.main()\n",
            "new_file_content": "from helper import unittest, PillowTestCase, hopper\n\nfrom PIL import Image\nfrom PIL import ImageSequence\nfrom PIL import SpiderImagePlugin\n\nimport tempfile\n\nTEST_FILE = \"Tests/images/hopper.spider\"\n\n\nclass TestImageSpider(PillowTestCase):\n\n    def test_sanity(self):\n        im = Image.open(TEST_FILE)\n        im.load()\n        self.assertEqual(im.mode, \"F\")\n        self.assertEqual(im.size, (128, 128))\n        self.assertEqual(im.format, \"SPIDER\")\n\n    def test_save(self):\n        # Arrange\n        temp = self.tempfile('temp.spider')\n        im = hopper()\n\n        # Act\n        im.save(temp, \"SPIDER\")\n\n        # Assert\n        im2 = Image.open(temp)\n        self.assertEqual(im2.mode, \"F\")\n        self.assertEqual(im2.size, (128, 128))\n        self.assertEqual(im2.format, \"SPIDER\")\n\n    def test_tempfile(self):\n        # Arrange\n        im = hopper()\n\n        # Act\n        with tempfile.TemporaryFile() as fp:\n            im.save(fp, \"SPIDER\")\n\n            # Assert\n            fp.seek(0)\n            reloaded = Image.open(fp)\n            self.assertEqual(reloaded.mode, \"F\")\n            self.assertEqual(reloaded.size, (128, 128))\n            self.assertEqual(reloaded.format, \"SPIDER\")\n\n    def test_isSpiderImage(self):\n        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))\n\n    def test_tell(self):\n        # Arrange\n        im = Image.open(TEST_FILE)\n\n        # Act\n        index = im.tell()\n\n        # Assert\n        self.assertEqual(index, 0)\n\n    def test_n_frames(self):\n        im = Image.open(TEST_FILE)\n        self.assertEqual(im.n_frames, 1)\n        self.assertFalse(im.is_animated)\n\n    def test_loadImageSeries(self):\n        # Arrange\n        not_spider_file = \"Tests/images/hopper.ppm\"\n        file_list = [TEST_FILE, not_spider_file, \"path/not_found.ext\"]\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertEqual(len(img_list), 1)\n        self.assertIsInstance(img_list[0], Image.Image)\n        self.assertEqual(img_list[0].size, (128, 128))\n\n    def test_loadImageSeries_no_input(self):\n        # Arrange\n        file_list = None\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertIsNone(img_list)\n\n    def test_isInt_not_a_number(self):\n        # Arrange\n        not_a_number = \"a\"\n\n        # Act\n        ret = SpiderImagePlugin.isInt(not_a_number)\n\n        # Assert\n        self.assertEqual(ret, 0)\n\n    def test_invalid_file(self):\n        invalid_file = \"Tests/images/invalid.spider\"\n\n        self.assertRaises(IOError, Image.open, invalid_file)\n\n    def test_nonstack_file(self):\n        im = Image.open(TEST_FILE)\n\n        self.assertRaises(EOFError, im.seek, 0)\n\n    def test_nonstack_dos(self):\n        im = Image.open(TEST_FILE)\n        for i, frame in enumerate(ImageSequence.Iterator(im)):\n            if i > 1:\n                self.fail(\"Non-stack DOS file test failed\")\n\n\nif __name__ == '__main__':\n    unittest.main()\n",
            "header": {
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                    "path": "Tests/test_file_spider.py"
                },
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            },
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                "old_commit_hash": "a2a27a3b3",
                "new_commit_hash": "b54b92e04",
                "mode": "100644"
            },
            "is_binary_file": false,
            "binary_line": null,
            "minus_file": {
                "path": "a/Tests/test_file_spider.py"
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            "hunks": [
                {
                    "descriptor": {
                        "old_range": {
                            "start": 4,
                            "length": 6
                        },
                        "new_range": {
                            "start": 4,
                            "length": 8
                        },
                        "section": "from PIL import Image"
                    },
                    "line_group": {
                        "all_lines": [
                            {
                                "content": "from PIL import ImageSequence",
                                "type": "context"
                            },
                            {
                                "content": "from PIL import SpiderImagePlugin",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
                            },
                            {
                                "content": "import tempfile",
                                "type": "added"
                            },
                            {
                                "content": "",
                                "type": "added"
                            },
                            {
                                "content": "TEST_FILE = \"Tests/images/hopper.spider\"",
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                                "content": "",
                                "type": "context"
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                                "content": "",
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                    "added_entities": [
                        {
                            "file_name": "Tests/test_file_spider.py",
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                            "start_lineno": 7,
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                        "section": "class TestImageSpider(PillowTestCase):"
                    },
                    "line_group": {
                        "all_lines": [
                            {
                                "content": "        self.assertEqual(im2.size, (128, 128))",
                                "type": "context"
                            },
                            {
                                "content": "        self.assertEqual(im2.format, \"SPIDER\")",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
                            },
                            {
                                "content": "    def test_tempfile(self):",
                                "type": "added"
                            },
                            {
                                "content": "        # Arrange",
                                "type": "added"
                            },
                            {
                                "content": "        im = hopper()",
                                "type": "added"
                            },
                            {
                                "content": "",
                                "type": "added"
                            },
                            {
                                "content": "        # Act",
                                "type": "added"
                            },
                            {
                                "content": "        with tempfile.TemporaryFile() as fp:",
                                "type": "added"
                            },
                            {
                                "content": "            im.save(fp, \"SPIDER\")",
                                "type": "added"
                            },
                            {
                                "content": "",
                                "type": "added"
                            },
                            {
                                "content": "            # Assert",
                                "type": "added"
                            },
                            {
                                "content": "            fp.seek(0)",
                                "type": "added"
                            },
                            {
                                "content": "            reloaded = Image.open(fp)",
                                "type": "added"
                            },
                            {
                                "content": "            self.assertEqual(reloaded.mode, \"F\")",
                                "type": "added"
                            },
                            {
                                "content": "            self.assertEqual(reloaded.size, (128, 128))",
                                "type": "added"
                            },
                            {
                                "content": "            self.assertEqual(reloaded.format, \"SPIDER\")",
                                "type": "added"
                            },
                            {
                                "content": "",
                                "type": "added"
                            },
                            {
                                "content": "    def test_isSpiderImage(self):",
                                "type": "context"
                            },
                            {
                                "content": "        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
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                    "modified_entities": [
                        {
                            "file_name": "Tests/test_file_spider.py",
                            "type": "class",
                            "name": "TestImageSpider",
                            "content": "class TestImageSpider(PillowTestCase):\n\n    def test_sanity(self):\n        im = Image.open(TEST_FILE)\n        im.load()\n        self.assertEqual(im.mode, \"F\")\n        self.assertEqual(im.size, (128, 128))\n        self.assertEqual(im.format, \"SPIDER\")\n\n    def test_save(self):\n        # Arrange\n        temp = self.tempfile('temp.spider')\n        im = hopper()\n\n        # Act\n        im.save(temp, \"SPIDER\")\n\n        # Assert\n        im2 = Image.open(temp)\n        self.assertEqual(im2.mode, \"F\")\n        self.assertEqual(im2.size, (128, 128))\n        self.assertEqual(im2.format, \"SPIDER\")\n\n    def test_tempfile(self):\n        # Arrange\n        im = hopper()\n\n        # Act\n        with tempfile.TemporaryFile() as fp:\n            im.save(fp, \"SPIDER\")\n\n            # Assert\n            fp.seek(0)\n            reloaded = Image.open(fp)\n            self.assertEqual(reloaded.mode, \"F\")\n            self.assertEqual(reloaded.size, (128, 128))\n            self.assertEqual(reloaded.format, \"SPIDER\")\n\n    def test_isSpiderImage(self):\n        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))\n\n    def test_tell(self):\n        # Arrange\n        im = Image.open(TEST_FILE)\n\n        # Act\n        index = im.tell()\n\n        # Assert\n        self.assertEqual(index, 0)\n\n    def test_n_frames(self):\n        im = Image.open(TEST_FILE)\n        self.assertEqual(im.n_frames, 1)\n        self.assertFalse(im.is_animated)\n\n    def test_loadImageSeries(self):\n        # Arrange\n        not_spider_file = \"Tests/images/hopper.ppm\"\n        file_list = [TEST_FILE, not_spider_file, \"path/not_found.ext\"]\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertEqual(len(img_list), 1)\n        self.assertIsInstance(img_list[0], Image.Image)\n        self.assertEqual(img_list[0].size, (128, 128))\n\n    def test_loadImageSeries_no_input(self):\n        # Arrange\n        file_list = None\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertIsNone(img_list)\n\n    def test_isInt_not_a_number(self):\n        # Arrange\n        not_a_number = \"a\"\n\n        # Act\n        ret = SpiderImagePlugin.isInt(not_a_number)\n\n        # Assert\n        self.assertEqual(ret, 0)\n\n    def test_invalid_file(self):\n        invalid_file = \"Tests/images/invalid.spider\"\n\n        self.assertRaises(IOError, Image.open, invalid_file)\n\n    def test_nonstack_file(self):\n        im = Image.open(TEST_FILE)\n\n        self.assertRaises(EOFError, im.seek, 0)\n\n    def test_nonstack_dos(self):\n        im = Image.open(TEST_FILE)\n        for i, frame in enumerate(ImageSequence.Iterator(im)):\n            if i > 1:\n                self.fail(\"Non-stack DOS file test failed\")",
                            "ast_type_str": "ClassDef",
                            "start_lineno": 12,
                            "end_lineno": 115,
                            "parent": null
                        }
                    ],
                    "added_entities": [
                        {
                            "file_name": "Tests/test_file_spider.py",
                            "type": "method",
                            "name": "TestImageSpider.test_tempfile",
                            "content": "class TestImageSpider(PillowTestCase):\n\n    def test_sanity(self):\n        im = Image.open(TEST_FILE)\n        im.load()\n        self.assertEqual(im.mode, \"F\")\n        self.assertEqual(im.size, (128, 128))\n        self.assertEqual(im.format, \"SPIDER\")\n\n    def test_save(self):\n        # Arrange\n        temp = self.tempfile('temp.spider')\n        im = hopper()\n\n        # Act\n        im.save(temp, \"SPIDER\")\n\n        # Assert\n        im2 = Image.open(temp)\n        self.assertEqual(im2.mode, \"F\")\n        self.assertEqual(im2.size, (128, 128))\n        self.assertEqual(im2.format, \"SPIDER\")\n\n    def test_tempfile(self):\n        # Arrange\n        im = hopper()\n\n        # Act\n        with tempfile.TemporaryFile() as fp:\n            im.save(fp, \"SPIDER\")\n\n            # Assert\n            fp.seek(0)\n            reloaded = Image.open(fp)\n            self.assertEqual(reloaded.mode, \"F\")\n            self.assertEqual(reloaded.size, (128, 128))\n            self.assertEqual(reloaded.format, \"SPIDER\")\n\n    def test_isSpiderImage(self):\n        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))\n\n    def test_tell(self):\n        # Arrange\n        im = Image.open(TEST_FILE)\n\n        # Act\n        index = im.tell()\n\n        # Assert\n        self.assertEqual(index, 0)\n\n    def test_n_frames(self):\n        im = Image.open(TEST_FILE)\n        self.assertEqual(im.n_frames, 1)\n        self.assertFalse(im.is_animated)\n\n    def test_loadImageSeries(self):\n        # Arrange\n        not_spider_file = \"Tests/images/hopper.ppm\"\n        file_list = [TEST_FILE, not_spider_file, \"path/not_found.ext\"]\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertEqual(len(img_list), 1)\n        self.assertIsInstance(img_list[0], Image.Image)\n        self.assertEqual(img_list[0].size, (128, 128))\n\n    def test_loadImageSeries_no_input(self):\n        # Arrange\n        file_list = None\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertIsNone(img_list)\n\n    def test_isInt_not_a_number(self):\n        # Arrange\n        not_a_number = \"a\"\n\n        # Act\n        ret = SpiderImagePlugin.isInt(not_a_number)\n\n        # Assert\n        self.assertEqual(ret, 0)\n\n    def test_invalid_file(self):\n        invalid_file = \"Tests/images/invalid.spider\"\n\n        self.assertRaises(IOError, Image.open, invalid_file)\n\n    def test_nonstack_file(self):\n        im = Image.open(TEST_FILE)\n\n        self.assertRaises(EOFError, im.seek, 0)\n\n    def test_nonstack_dos(self):\n        im = Image.open(TEST_FILE)\n        for i, frame in enumerate(ImageSequence.Iterator(im)):\n            if i > 1:\n                self.fail(\"Non-stack DOS file test failed\")",
                            "ast_type_str": "ClassDef",
                            "start_lineno": 35,
                            "end_lineno": 48,
                            "parent": {
                                "file_name": "Tests/test_file_spider.py",
                                "type": "class",
                                "name": "TestImageSpider",
                                "content": "class TestImageSpider(PillowTestCase):\n\n    def test_sanity(self):\n        im = Image.open(TEST_FILE)\n        im.load()\n        self.assertEqual(im.mode, \"F\")\n        self.assertEqual(im.size, (128, 128))\n        self.assertEqual(im.format, \"SPIDER\")\n\n    def test_save(self):\n        # Arrange\n        temp = self.tempfile('temp.spider')\n        im = hopper()\n\n        # Act\n        im.save(temp, \"SPIDER\")\n\n        # Assert\n        im2 = Image.open(temp)\n        self.assertEqual(im2.mode, \"F\")\n        self.assertEqual(im2.size, (128, 128))\n        self.assertEqual(im2.format, \"SPIDER\")\n\n    def test_tempfile(self):\n        # Arrange\n        im = hopper()\n\n        # Act\n        with tempfile.TemporaryFile() as fp:\n            im.save(fp, \"SPIDER\")\n\n            # Assert\n            fp.seek(0)\n            reloaded = Image.open(fp)\n            self.assertEqual(reloaded.mode, \"F\")\n            self.assertEqual(reloaded.size, (128, 128))\n            self.assertEqual(reloaded.format, \"SPIDER\")\n\n    def test_isSpiderImage(self):\n        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))\n\n    def test_tell(self):\n        # Arrange\n        im = Image.open(TEST_FILE)\n\n        # Act\n        index = im.tell()\n\n        # Assert\n        self.assertEqual(index, 0)\n\n    def test_n_frames(self):\n        im = Image.open(TEST_FILE)\n        self.assertEqual(im.n_frames, 1)\n        self.assertFalse(im.is_animated)\n\n    def test_loadImageSeries(self):\n        # Arrange\n        not_spider_file = \"Tests/images/hopper.ppm\"\n        file_list = [TEST_FILE, not_spider_file, \"path/not_found.ext\"]\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertEqual(len(img_list), 1)\n        self.assertIsInstance(img_list[0], Image.Image)\n        self.assertEqual(img_list[0].size, (128, 128))\n\n    def test_loadImageSeries_no_input(self):\n        # Arrange\n        file_list = None\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertIsNone(img_list)\n\n    def test_isInt_not_a_number(self):\n        # Arrange\n        not_a_number = \"a\"\n\n        # Act\n        ret = SpiderImagePlugin.isInt(not_a_number)\n\n        # Assert\n        self.assertEqual(ret, 0)\n\n    def test_invalid_file(self):\n        invalid_file = \"Tests/images/invalid.spider\"\n\n        self.assertRaises(IOError, Image.open, invalid_file)\n\n    def test_nonstack_file(self):\n        im = Image.open(TEST_FILE)\n\n        self.assertRaises(EOFError, im.seek, 0)\n\n    def test_nonstack_dos(self):\n        im = Image.open(TEST_FILE)\n        for i, frame in enumerate(ImageSequence.Iterator(im)):\n            if i > 1:\n                self.fail(\"Non-stack DOS file test failed\")",
                                "ast_type_str": "ClassDef",
                                "start_lineno": 12,
                                "end_lineno": 115,
                                "parent": null
                            }
                        }
                    ],
                    "deleted_entities": []
                }
            ]
        }
    ],
    "old_commit_hash": "04052e85c949bfd2fd67297ed8c43960b4abbf3a^",
    "new_commit_hash": "04052e85c949bfd2fd67297ed8c43960b4abbf3a",
    "commit_message": "Merge pull request #2647 from radarhere/spider\n\nAdded file pointer save to SpiderImagePlugin",
    "commit_date": "2017-09-09T10:23:45+01:00",
    "metadata": {}
}
{
    "repo_name": "pillow",
    "new_commit_hash": "04052e85c949bfd2fd67297ed8c43960b4abbf3a",
    "test_file_codes": [
        "from helper import unittest, PillowTestCase, hopper\n\nfrom PIL import Image\nfrom PIL import ImageSequence\nfrom PIL import SpiderImagePlugin\n\nimport tempfile\n\nTEST_FILE = \"Tests/images/hopper.spider\"\n\n\nclass TestImageSpider(PillowTestCase):\n\n    def test_sanity(self):\n        im = Image.open(TEST_FILE)\n        im.load()\n        self.assertEqual(im.mode, \"F\")\n        self.assertEqual(im.size, (128, 128))\n        self.assertEqual(im.format, \"SPIDER\")\n\n    def test_save(self):\n        # Arrange\n        temp = self.tempfile('temp.spider')\n        im = hopper()\n\n        # Act\n        im.save(temp, \"SPIDER\")\n\n        # Assert\n        im2 = Image.open(temp)\n        self.assertEqual(im2.mode, \"F\")\n        self.assertEqual(im2.size, (128, 128))\n        self.assertEqual(im2.format, \"SPIDER\")\n\n    def test_tempfile(self):\n        # Arrange\n        im = hopper()\n\n        # Act\n        with tempfile.TemporaryFile() as fp:\n            im.save(fp, \"SPIDER\")\n\n            # Assert\n            fp.seek(0)\n            reloaded = Image.open(fp)\n            self.assertEqual(reloaded.mode, \"F\")\n            self.assertEqual(reloaded.size, (128, 128))\n            self.assertEqual(reloaded.format, \"SPIDER\")\n\n    def test_isSpiderImage(self):\n        self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))\n\n    def test_tell(self):\n        # Arrange\n        im = Image.open(TEST_FILE)\n\n        # Act\n        index = im.tell()\n\n        # Assert\n        self.assertEqual(index, 0)\n\n    def test_n_frames(self):\n        im = Image.open(TEST_FILE)\n        self.assertEqual(im.n_frames, 1)\n        self.assertFalse(im.is_animated)\n\n    def test_loadImageSeries(self):\n        # Arrange\n        not_spider_file = \"Tests/images/hopper.ppm\"\n        file_list = [TEST_FILE, not_spider_file, \"path/not_found.ext\"]\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertEqual(len(img_list), 1)\n        self.assertIsInstance(img_list[0], Image.Image)\n        self.assertEqual(img_list[0].size, (128, 128))\n\n    def test_loadImageSeries_no_input(self):\n        # Arrange\n        file_list = None\n\n        # Act\n        img_list = SpiderImagePlugin.loadImageSeries(file_list)\n\n        # Assert\n        self.assertIsNone(img_list)\n\n    def test_isInt_not_a_number(self):\n        # Arrange\n        not_a_number = \"a\"\n\n        # Act\n        ret = SpiderImagePlugin.isInt(not_a_number)\n\n        # Assert\n        self.assertEqual(ret, 0)\n\n    def test_invalid_file(self):\n        invalid_file = \"Tests/images/invalid.spider\"\n\n        self.assertRaises(IOError, Image.open, invalid_file)\n\n    def test_nonstack_file(self):\n        im = Image.open(TEST_FILE)\n\n        self.assertRaises(EOFError, im.seek, 0)\n\n    def test_nonstack_dos(self):\n        im = Image.open(TEST_FILE)\n        for i, frame in enumerate(ImageSequence.Iterator(im)):\n            if i > 1:\n                self.fail(\"Non-stack DOS file test failed\")\n\n\nif __name__ == '__main__':\n    unittest.main()\n",
        "#!/usr/bin/env python\nimport unittest\nimport sys\nimport time\nimport traceback\nimport platform\nimport os\n\n\nclass PytestLikeResult(unittest.TestResult):\n    def __init__(self, *args, **kwargs):\n        super().__init__(*args, **kwargs)\n        self.start_time = None\n        # Store (test, outcome, info) for each test:\n        #   outcome ∈ { \"passed\", \"failed\", \"error\", \"skipped\" }\n        #   info can hold the exception or skip reason, etc.\n        self.results = []\n\n    def startTestRun(self):\n        \"\"\"Called once before all tests.\"\"\"\n        self.start_time = time.time()\n        # Print a header similar to pytest\n        print(\"=\" * 29 + \" test session starts \" + \"=\" * 29)\n        # You can customize the platform/versions/paths as you like:\n        print(\n            f\"platform {platform.system().lower()} -- Python {platform.python_version()}\"\n        )\n        print(f\"rootdir: {os.path.abspath(os.curdir)}\")\n\n    def stopTestRun(self):\n        \"\"\"Called once after all tests are done.\"\"\"\n        elapsed = time.time() - self.start_time\n        print()  # blank line after final dot\n\n        # Summarize\n        ntests = len(self.results)\n        print(f\"collected {ntests} items\")\n\n        # Show details of failures/errors\n        failures = [r for r in self.results if r[1] == \"failed\"]\n        errors = [r for r in self.results if r[1] == \"error\"]\n\n        if failures:\n            print(\"\\n\" + \"=\" * 35 + \" FAILURES \" + \"=\" * 35)\n            for test, outcome, err_info in failures:\n                test = test.split(\"::\")\n                if len(test) == 3:\n                    test = f\"{test[1]}.{test[2]}\"\n                else:\n                    test = f\"{test[1]}\"\n                print(f\"__________ {test} __________\")\n                self._print_traceback(err_info)\n        if errors:\n            print(\"\\n\" + \"=\" * 35 + \" ERRORS \" + \"=\" * 37)\n            for test, outcome, err_info in errors:\n                test = test.split(\"::\")\n                if len(test) == 3:\n                    test = f\"{test[1]}.{test[2]}\"\n                else:\n                    test = f\"{test[1]}\"\n                print(f\"__________ {test} __________\")\n                self._print_traceback(err_info)\n\n        # Optional short summary lines for passes/fails/skips\n        print(\"\\n==================== short test summary info ====================\")\n        for test, outcome, info in self.results:\n            if outcome in (\"passed\", \"failed\", \"error\", \"skipped\"):\n                print(f\"{outcome.upper()} {test}\")\n\n        # Final one-line summary: “1 failed, 1 errors, 10 passed in 2.04s”\n        passed_count = sum(1 for r in self.results if r[1] == \"passed\")\n        failed_count = len(failures)\n        error_count = len(errors)\n        skipped_count = sum(1 for r in self.results if r[1] == \"skipped\")\n\n        summary_bits = []\n        if failed_count:\n            summary_bits.append(f\"{failed_count} failed\")\n        if error_count:\n            summary_bits.append(f\"{error_count} error{'s' if error_count != 1 else ''}\")\n        if passed_count:\n            summary_bits.append(f\"{passed_count} passed\")\n        if skipped_count:\n            summary_bits.append(f\"{skipped_count} skipped\")\n\n        summary_str = \", \".join(summary_bits) if summary_bits else \"no tests run\"\n        print(\n            f\"=================== {summary_str} in {elapsed:.2f}s ===================\"\n        )\n\n    def startTest(self, test):\n        \"\"\"Called right before each test method.\"\"\"\n        super().startTest(test)\n        # Print a dot or some indicator\n        print(\".\", end=\"\", flush=True)\n\n    def addSuccess(self, test):\n        super().addSuccess(test)\n        self.results.append((self._test_id(test), \"passed\", None))\n\n    def addFailure(self, test, err):\n        super().addFailure(test, err)\n        self.results.append((self._test_id(test), \"failed\", err))\n\n    def addError(self, test, err):\n        super().addError(test, err)\n        self.results.append((self._test_id(test), \"error\", err))\n\n    def addSkip(self, test, reason):\n        super().addSkip(test, reason)\n        self.results.append((self._test_id(test), \"skipped\", reason))\n\n    def _print_traceback(self, err_info):\n        \"\"\"Helper to print the traceback like pytest does.\"\"\"\n        if isinstance(err_info, tuple) and len(err_info) == 3:\n            exc_type, exc_value, tb = err_info\n            traceback.print_exception(exc_type, exc_value, tb, file=sys.stdout)\n        else:\n            print(str(err_info))\n\n    def _test_id(self, test):\n        try:\n            return f\"{test.__class__.__module__}::{test.__class__.__name__}::{test._testMethodName}\"\n        except AttributeError:\n            # Fallback for _ErrorHolder objects\n            return f\"{test.__class__.__module__}::{test.__class__.__name__}\"\n\n\nclass PytestLikeRunner(unittest.TextTestRunner):\n    \"\"\"A custom TextTestRunner that uses the PytestLikeResult.\"\"\"\n\n    resultclass = PytestLikeResult\n\n    def run(self, test):\n        result = self._makeResult()\n        # Overriding run to ensure we call startTestRun/stopTestRun\n        result.startTestRun()\n        test(result)\n        result.stopTestRun()\n        return result\n\n\ndef main():\n    loader = unittest.TestLoader()\n    suite = loader.discover(\"r2e_tests\")  # discover tests in r2e_tests/\n    runner = PytestLikeRunner(verbosity=0)\n    result = runner.run(suite)\n    # Exit with code 0 if all tests passed/skipped, 1 if there were fails/errors\n    sys.exit(not result.wasSuccessful())\n\n\nif __name__ == \"__main__\":\n    main()\n"
    ],
    "test_file_names": [
        "test_1.py",
        "unittest_custom_runner.py"
    ],
    "setup_res_code": 0,
    "setup_res_stdout": "Starting Pillow installation attempts...\nVerifying Pillow installation...\n✅ Pillow installation successful!\nSuccessfully installed Pillow\n",
    "setup_res_stderr": "Using CPython 3.9.21\nCreating virtual environment at: .venv\nActivate with: source .venv/bin/activate\nResolved 12 packages in 14ms\nInstalled 12 packages in 292ms\n + coverage==7.6.10\n + exceptiongroup==1.2.2\n + iniconfig==2.0.0\n + packaging==24.2\n + pluggy==1.5.0\n + pyqt5==5.15.11\n + pyqt5-qt5==5.15.16\n + pyqt5-sip==12.16.1\n + pytest==8.3.4\n + pytest-cov==6.0.0\n + setuptools==75.8.0\n + tomli==2.2.1\nResolved 2 packages in 1.00s\nPrepared 1 package in 15.87s\nInstalled 2 packages in 2ms\n + olefile==0.47\n + pillow==4.3.0.dev0 (from file:///home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a)\n",
    "new_commit_res_code": 0,
    "new_commit_res_stdout": "============================= test session starts =============================\nplatform linux -- Python 3.9.21\nrootdir: /home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a\n....Tests/images/hopper.ppm is not a Spider image file\nunable to find path/not_found.ext\n........\ncollected 12 items\n\n==================== short test summary info ====================\nPASSED test_1::TestImageSpider::test_invalid_file\nPASSED test_1::TestImageSpider::test_isInt_not_a_number\nPASSED test_1::TestImageSpider::test_isSpiderImage\nPASSED test_1::TestImageSpider::test_loadImageSeries\nPASSED test_1::TestImageSpider::test_loadImageSeries_no_input\nPASSED test_1::TestImageSpider::test_n_frames\nPASSED test_1::TestImageSpider::test_nonstack_dos\nPASSED test_1::TestImageSpider::test_nonstack_file\nPASSED test_1::TestImageSpider::test_sanity\nPASSED test_1::TestImageSpider::test_save\nPASSED test_1::TestImageSpider::test_tell\nPASSED test_1::TestImageSpider::test_tempfile\n=================== 12 passed in 0.11s ===================\n",
    "new_commit_res_stderr": "",
    "old_commit_res_code": 1,
    "old_commit_res_stdout": "============================= test session starts =============================\nplatform linux -- Python 3.9.21\nrootdir: /home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a\n....Tests/images/hopper.ppm is not a Spider image file\nunable to find path/not_found.ext\n........\ncollected 12 items\n\n=================================== ERRORS =====================================\n__________ TestImageSpider.test_tempfile __________\nTraceback (most recent call last):\n  File \"/home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a/PIL/SpiderImagePlugin.py\", line 271, in _save\n    fp = open(filename, 'wb')\nFileNotFoundError: [Errno 2] No such file or directory: ''\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n  File \"/home/gcpuser/.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/lib/python3.9/unittest/case.py\", line 59, in testPartExecutor\n    yield\n  File \"/home/gcpuser/.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/lib/python3.9/unittest/case.py\", line 592, in run\n    self._callTestMethod(testMethod)\n  File \"/home/gcpuser/.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/lib/python3.9/unittest/case.py\", line 550, in _callTestMethod\n    method()\n  File \"/home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a/r2e_tests/test_1.py\", line 41, in test_tempfile\n    im.save(fp, \"SPIDER\")\n  File \"/home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a/PIL/Image.py\", line 1917, in save\n    save_handler(self, fp, filename)\n  File \"/home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a/PIL/SpiderImagePlugin.py\", line 286, in _save_spider\n    _save(im, fp, filename)\n  File \"/home/gcpuser/buckets/local_repoeval_bucket/repos/pillow_04052e85c949bfd2fd67297ed8c43960b4abbf3a/PIL/SpiderImagePlugin.py\", line 273, in _save\n    raise IOError(\"Unable to open %s for writing\" % filename)\nOSError: Unable to open  for writing\n\n==================== short test summary info ====================\nPASSED test_1::TestImageSpider::test_invalid_file\nPASSED test_1::TestImageSpider::test_isInt_not_a_number\nPASSED test_1::TestImageSpider::test_isSpiderImage\nPASSED test_1::TestImageSpider::test_loadImageSeries\nPASSED test_1::TestImageSpider::test_loadImageSeries_no_input\nPASSED test_1::TestImageSpider::test_n_frames\nPASSED test_1::TestImageSpider::test_nonstack_dos\nPASSED test_1::TestImageSpider::test_nonstack_file\nPASSED test_1::TestImageSpider::test_sanity\nPASSED test_1::TestImageSpider::test_save\nPASSED test_1::TestImageSpider::test_tell\nERROR test_1::TestImageSpider::test_tempfile\n=================== 1 error, 11 passed in 0.03s ===================\n",
    "old_commit_res_stderr": ""
}
PIL/SpiderImagePlugin.py Tests/test_file_spider.py
We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[ISSUE]
**Title:** Unable to Save Spider Image to File-like Object Without Filename

**Description:**
When attempting to save a Spider format image using a file-like object, the operation fails because the system tries to open a filename for writing. This prevents saving images to in-memory file-like objects such as `TemporaryFile`.

**Example Code:**
```python
from PIL import Image, SpiderImagePlugin
import tempfile

im = Image.open("hopper.spider")
with tempfile.TemporaryFile() as fp:
    im.save(fp, "SPIDER")
```

**Expected Behavior:**
The image should be saved successfully to the provided file-like object without requiring a filename.

**Actual Behavior:**
An `OSError` is raised with the message "Unable to open  for writing" because no filename is provided.

[/ISSUE]
--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.

--- BEGIN FILE ---
```
### PIL/SpiderImagePlugin.py
#
# The Python Imaging Library.
#
# SPIDER image file handling
#
# History:
# 2004-08-02    Created BB
# 2006-03-02    added save method
# 2006-03-13    added support for stack images
#
# Copyright (c) 2004 by Health Research Inc. (HRI) RENSSELAER, NY 12144.
# Copyright (c) 2004 by William Baxter.
# Copyright (c) 2004 by Secret Labs AB.
# Copyright (c) 2004 by Fredrik Lundh.
#

##
# Image plugin for the Spider image format.  This format is is used
# by the SPIDER software, in processing image data from electron
# microscopy and tomography.
##

#
# SpiderImagePlugin.py
#
# The Spider image format is used by SPIDER software, in processing
# image data from electron microscopy and tomography.
#
# Spider home page:
# https://spider.wadsworth.org/spider_doc/spider/docs/spider.html
#
# Details about the Spider image format:
# https://spider.wadsworth.org/spider_doc/spider/docs/image_doc.html
#

from __future__ import print_function

from PIL import Image, ImageFile
import os
import struct
import sys


def isInt(f):
    try:
        i = int(f)
        if f-i == 0:
            return 1
        else:
            return 0
    except ValueError:
        return 0
    except OverflowError:
        return 0

iforms = [1, 3, -11, -12, -21, -22]


# There is no magic number to identify Spider files, so just check a
# series of header locations to see if they have reasonable values.
# Returns no. of bytes in the header, if it is a valid Spider header,
# otherwise returns 0

def isSpiderHeader(t):
    h = (99,) + t   # add 1 value so can use spider header index start=1
    # header values 1,2,5,12,13,22,23 should be integers
    for i in [1, 2, 5, 12, 13, 22, 23]:
        if not isInt(h[i]):
            return 0
    # check iform
    iform = int(h[5])
    if iform not in iforms:
        return 0
    # check other header values
    labrec = int(h[13])   # no. records in file header
    labbyt = int(h[22])   # total no. of bytes in header
    lenbyt = int(h[23])   # record length in bytes
    # print("labrec = %d, labbyt = %d, lenbyt = %d" % (labrec,labbyt,lenbyt))
    if labbyt != (labrec * lenbyt):
        return 0
    # looks like a valid header
    return labbyt


def isSpiderImage(filename):
    with open(filename, 'rb') as fp:
        f = fp.read(92)   # read 23 * 4 bytes
    t = struct.unpack('>23f', f)  # try big-endian first
    hdrlen = isSpiderHeader(t)
    if hdrlen == 0:
        t = struct.unpack('<23f', f)  # little-endian
        hdrlen = isSpiderHeader(t)
    return hdrlen


class SpiderImageFile(ImageFile.ImageFile):

    format = "SPIDER"
    format_description = "Spider 2D image"
    _close_exclusive_fp_after_loading = False

    def _open(self):
        # check header
        n = 27 * 4  # read 27 float values
        f = self.fp.read(n)

        try:
            self.bigendian = 1
            t = struct.unpack('>27f', f)  # try big-endian first
            hdrlen = isSpiderHeader(t)
            if hdrlen == 0:
                self.bigendian = 0
                t = struct.unpack('<27f', f)  # little-endian
                hdrlen = isSpiderHeader(t)
            if hdrlen == 0:
                raise SyntaxError("not a valid Spider file")
        except struct.error:
            raise SyntaxError("not a valid Spider file")

        h = (99,) + t   # add 1 value : spider header index starts at 1
        iform = int(h[5])
        if iform != 1:
            raise SyntaxError("not a Spider 2D image")

        self.size = int(h[12]), int(h[2])  # size in pixels (width, height)
        self.istack = int(h[24])
        self.imgnumber = int(h[27])

        if self.istack == 0 and self.imgnumber == 0:
            # stk=0, img=0: a regular 2D image
            offset = hdrlen
            self._nimages = 1
        elif self.istack > 0 and self.imgnumber == 0:
            # stk>0, img=0: Opening the stack for the first time
            self.imgbytes = int(h[12]) * int(h[2]) * 4
            self.hdrlen = hdrlen
            self._nimages = int(h[26])
            # Point to the first image in the stack
            offset = hdrlen * 2
            self.imgnumber = 1
        elif self.istack == 0 and self.imgnumber > 0:
            # stk=0, img>0: an image within the stack
            offset = hdrlen + self.stkoffset
            self.istack = 2  # So Image knows it's still a stack
        else:
            raise SyntaxError("inconsistent stack header values")

        if self.bigendian:
            self.rawmode = "F;32BF"
        else:
            self.rawmode = "F;32F"
        self.mode = "F"

        self.tile = [
            ("raw", (0, 0) + self.size, offset,
                (self.rawmode, 0, 1))]
        self.__fp = self.fp  # FIXME: hack

    @property
    def n_frames(self):
        return self._nimages

    @property
    def is_animated(self):
        return self._nimages > 1

    # 1st image index is zero (although SPIDER imgnumber starts at 1)
    def tell(self):
        if self.imgnumber < 1:
            return 0
        else:
            return self.imgnumber - 1

    def seek(self, frame):
        if self.istack == 0:
            raise EOFError("attempt to seek in a non-stack file")
        if frame >= self._nimages:
            raise EOFError("attempt to seek past end of file")
        self.stkoffset = self.hdrlen + frame * (self.hdrlen + self.imgbytes)
        self.fp = self.__fp
        self.fp.seek(self.stkoffset)
        self._open()

    # returns a byte image after rescaling to 0..255
    def convert2byte(self, depth=255):
        (minimum, maximum) = self.getextrema()
        m = 1
        if maximum != minimum:
            m = depth / (maximum-minimum)
        b = -m * minimum
        return self.point(lambda i, m=m, b=b: i * m + b).convert("L")

    # returns a ImageTk.PhotoImage object, after rescaling to 0..255
    def tkPhotoImage(self):
        from PIL import ImageTk
        return ImageTk.PhotoImage(self.convert2byte(), palette=256)


# --------------------------------------------------------------------
# Image series

# given a list of filenames, return a list of images
def loadImageSeries(filelist=None):
    " create a list of Image.images for use in montage "
    if filelist is None or len(filelist) < 1:
        return

    imglist = []
    for img in filelist:
        if not os.path.exists(img):
            print("unable to find %s" % img)
            continue
        try:
            im = Image.open(img).convert2byte()
        except:
            if not isSpiderImage(img):
                print(img + " is not a Spider image file")
            continue
        im.info['filename'] = img
        imglist.append(im)
    return imglist


# --------------------------------------------------------------------
# For saving images in Spider format

def makeSpiderHeader(im):
    nsam, nrow = im.size
    lenbyt = nsam * 4  # There are labrec records in the header
    labrec = 1024 / lenbyt
    if 1024 % lenbyt != 0:
        labrec += 1
    labbyt = labrec * lenbyt
    hdr = []
    nvalues = int(labbyt / 4)
    for i in range(nvalues):
        hdr.append(0.0)

    if len(hdr) < 23:
        return []

    # NB these are Fortran indices
    hdr[1] = 1.0             # nslice (=1 for an image)
    hdr[2] = float(nrow)     # number of rows per slice
    hdr[5] = 1.0             # iform for 2D image
    hdr[12] = float(nsam)    # number of pixels per line
    hdr[13] = float(labrec)  # number of records in file header
    hdr[22] = float(labbyt)  # total number of bytes in header
    hdr[23] = float(lenbyt)  # record length in bytes

    # adjust for Fortran indexing
    hdr = hdr[1:]
    hdr.append(0.0)
    # pack binary data into a string
    hdrstr = []
    for v in hdr:
        hdrstr.append(struct.pack('f', v))
    return hdrstr


def _save(im, fp, filename):
    if im.mode[0] != "F":
        im = im.convert('F')

    hdr = makeSpiderHeader(im)
    if len(hdr) < 256:
        raise IOError("Error creating Spider header")

    # write the SPIDER header
    try:
        fp = open(filename, 'wb')
    except:
        raise IOError("Unable to open %s for writing" % filename)
    fp.writelines(hdr)

    rawmode = "F;32NF"  # 32-bit native floating point
    ImageFile._save(im, fp, [("raw", (0, 0)+im.size, 0, (rawmode, 0, 1))])

    fp.close()


def _save_spider(im, fp, filename):
    # get the filename extension and register it with Image
    ext = os.path.splitext(filename)[1]
    Image.register_extension(SpiderImageFile.format, ext)
    _save(im, fp, filename)

# --------------------------------------------------------------------

Image.register_open(SpiderImageFile.format, SpiderImageFile)
Image.register_save(SpiderImageFile.format, _save_spider)

if __name__ == "__main__":

    if not sys.argv[1:]:
        print("Syntax: python SpiderImagePlugin.py [infile] [outfile]")
        sys.exit()

    filename = sys.argv[1]
    if not isSpiderImage(filename):
        print("input image must be in Spider format")
        sys.exit()

    outfile = ""
    if len(sys.argv[1:]) > 1:
        outfile = sys.argv[2]

    im = Image.open(filename)
    print("image: " + str(im))
    print("format: " + str(im.format))
    print("size: " + str(im.size))
    print("mode: " + str(im.mode))
    print("max, min: ", end=' ')
    print(im.getextrema())

    if outfile != "":
        # perform some image operation
        im = im.transpose(Image.FLIP_LEFT_RIGHT)
        print(
            "saving a flipped version of %s as %s " %
            (os.path.basename(filename), outfile))
        im.save(outfile, SpiderImageFile.format)

```
--- END FILE ---

Please first localize the bug based on the issue statement, and then generate *SEARCH/REPLACE* edits to fix the issue.

Every *SEARCH/REPLACE* edit must use this format:
1. The file path
2. The start of search block: <<<<<<< SEARCH
3. A contiguous chunk of lines to search for in the existing source code
4. The dividing line: =======
5. The lines to replace into the source code
6. The end of the replace block: >>>>>>> REPLACE

Here is an example:

```python
### mathweb/flask/app.py
<<<<<<< SEARCH
from flask import Flask
=======
import math
from flask import Flask
>>>>>>> REPLACE
```
</solution>

Please note that the *SEARCH/REPLACE* edit REQUIRES PROPER INDENTATION. If you would like to add the line '        print(x)', you must fully write that out, with all those spaces before the code!
Wrap each *SEARCH/REPLACE* edit in a code block as shown in the example above. If you have multiple *SEARCH/REPLACE* edits, use a separate code block for each one.
[ISSUE]
**Title:** Unable to Save Spider Image to File-like Object Without Filename

**Description:**
When attempting to save a Spider format image using a file-like object, the operation fails because the system tries to open a filename for writing. This prevents saving images to in-memory file-like objects such as `TemporaryFile`.

**Example Code:**
```python
from PIL import Image, SpiderImagePlugin
import tempfile

im = Image.open("hopper.spider")
with tempfile.TemporaryFile() as fp:
    im.save(fp, "SPIDER")
```

**Expected Behavior:**
The image should be saved successfully to the provided file-like object without requiring a filename.

**Actual Behavior:**
An `OSError` is raised with the message "Unable to open  for writing" because no filename is provided.

[/ISSUE]
{
    "TestImageSpider.test_invalid_file": "PASSED",
    "TestImageSpider.test_isInt_not_a_number": "PASSED",
    "TestImageSpider.test_isSpiderImage": "PASSED",
    "TestImageSpider.test_loadImageSeries": "PASSED",
    "TestImageSpider.test_loadImageSeries_no_input": "PASSED",
    "TestImageSpider.test_n_frames": "PASSED",
    "TestImageSpider.test_nonstack_dos": "PASSED",
    "TestImageSpider.test_nonstack_file": "PASSED",
    "TestImageSpider.test_sanity": "PASSED",
    "TestImageSpider.test_save": "PASSED",
    "TestImageSpider.test_tell": "PASSED",
    "TestImageSpider.test_tempfile": "PASSED"
}
diff --git a/PIL/SpiderImagePlugin.py b/PIL/SpiderImagePlugin.py
index 6730bd104..a821fcf87 100644
--- a/PIL/SpiderImagePlugin.py
+++ b/PIL/SpiderImagePlugin.py
@@ -267,17 +267,11 @@ def _save(im, fp, filename):
         raise IOError("Error creating Spider header")
 
     # write the SPIDER header
-    try:
-        fp = open(filename, 'wb')
-    except:
-        raise IOError("Unable to open %s for writing" % filename)
     fp.writelines(hdr)
 
     rawmode = "F;32NF"  # 32-bit native floating point
     ImageFile._save(im, fp, [("raw", (0, 0)+im.size, 0, (rawmode, 0, 1))])
 
-    fp.close()
-
 
 def _save_spider(im, fp, filename):
     # get the filename extension and register it with Image

{"PIL/SpiderImagePlugin.py": "#\n# The Python Imaging Library.\n#\n# SPIDER image file handling\n#\n# History:\n# 2004-08-02    Created BB\n# 2006-03-02    added save method\n# 2006-03-13    added support for stack images\n#\n# Copyright (c) 2004 by Health Research Inc. (HRI) RENSSELAER, NY 12144.\n# Copyright (c) 2004 by William Baxter.\n# Copyright (c) 2004 by Secret Labs AB.\n# Copyright (c) 2004 by Fredrik Lundh.\n#\n\n##\n# Image plugin for the Spider image format.  This format is is used\n# by the SPIDER software, in processing image data from electron\n# microscopy and tomography.\n##\n\n#\n# SpiderImagePlugin.py\n#\n# The Spider image format is used by SPIDER software, in processing\n# image data from electron microscopy and tomography.\n#\n# Spider home page:\n# https://spider.wadsworth.org/spider_doc/spider/docs/spider.html\n#\n# Details about the Spider image format:\n# https://spider.wadsworth.org/spider_doc/spider/docs/image_doc.html\n#\n\nfrom __future__ import print_function\n\nfrom PIL import Image, ImageFile\nimport os\nimport struct\nimport sys\n\n\ndef isInt(f):\n    try:\n        i = int(f)\n        if f-i == 0:\n            return 1\n        else:\n            return 0\n    except ValueError:\n        return 0\n    except OverflowError:\n        return 0\n\niforms = [1, 3, -11, -12, -21, -22]\n\n\n# There is no magic number to identify Spider files, so just check a\n# series of header locations to see if they have reasonable values.\n# Returns no. of bytes in the header, if it is a valid Spider header,\n# otherwise returns 0\n\ndef isSpiderHeader(t):\n    h = (99,) + t   # add 1 value so can use spider header index start=1\n    # header values 1,2,5,12,13,22,23 should be integers\n    for i in [1, 2, 5, 12, 13, 22, 23]:\n        if not isInt(h[i]):\n            return 0\n    # check iform\n    iform = int(h[5])\n    if iform not in iforms:\n        return 0\n    # check other header values\n    labrec = int(h[13])   # no. records in file header\n    labbyt = int(h[22])   # total no. of bytes in header\n    lenbyt = int(h[23])   # record length in bytes\n    # print(\"labrec = %d, labbyt = %d, lenbyt = %d\" % (labrec,labbyt,lenbyt))\n    if labbyt != (labrec * lenbyt):\n        return 0\n    # looks like a valid header\n    return labbyt\n\n\ndef isSpiderImage(filename):\n    with open(filename, 'rb') as fp:\n        f = fp.read(92)   # read 23 * 4 bytes\n    t = struct.unpack('>23f', f)  # try big-endian first\n    hdrlen = isSpiderHeader(t)\n    if hdrlen == 0:\n        t = struct.unpack('<23f', f)  # little-endian\n        hdrlen = isSpiderHeader(t)\n    return hdrlen\n\n\nclass SpiderImageFile(ImageFile.ImageFile):\n\n    format = \"SPIDER\"\n    format_description = \"Spider 2D image\"\n    _close_exclusive_fp_after_loading = False\n\n    def _open(self):\n        # check header\n        n = 27 * 4  # read 27 float values\n        f = self.fp.read(n)\n\n        try:\n            self.bigendian = 1\n            t = struct.unpack('>27f', f)  # try big-endian first\n            hdrlen = isSpiderHeader(t)\n            if hdrlen == 0:\n                self.bigendian = 0\n                t = struct.unpack('<27f', f)  # little-endian\n                hdrlen = isSpiderHeader(t)\n            if hdrlen == 0:\n                raise SyntaxError(\"not a valid Spider file\")\n        except struct.error:\n            raise SyntaxError(\"not a valid Spider file\")\n\n        h = (99,) + t   # add 1 value : spider header index starts at 1\n        iform = int(h[5])\n        if iform != 1:\n            raise SyntaxError(\"not a Spider 2D image\")\n\n        self.size = int(h[12]), int(h[2])  # size in pixels (width, height)\n        self.istack = int(h[24])\n        self.imgnumber = int(h[27])\n\n        if self.istack == 0 and self.imgnumber == 0:\n            # stk=0, img=0: a regular 2D image\n            offset = hdrlen\n            self._nimages = 1\n        elif self.istack > 0 and self.imgnumber == 0:\n            # stk>0, img=0: Opening the stack for the first time\n            self.imgbytes = int(h[12]) * int(h[2]) * 4\n            self.hdrlen = hdrlen\n            self._nimages = int(h[26])\n            # Point to the first image in the stack\n            offset = hdrlen * 2\n            self.imgnumber = 1\n        elif self.istack == 0 and self.imgnumber > 0:\n            # stk=0, img>0: an image within the stack\n            offset = hdrlen + self.stkoffset\n            self.istack = 2  # So Image knows it's still a stack\n        else:\n            raise SyntaxError(\"inconsistent stack header values\")\n\n        if self.bigendian:\n            self.rawmode = \"F;32BF\"\n        else:\n            self.rawmode = \"F;32F\"\n        self.mode = \"F\"\n\n        self.tile = [\n            (\"raw\", (0, 0) + self.size, offset,\n                (self.rawmode, 0, 1))]\n        self.__fp = self.fp  # FIXME: hack\n\n    @property\n    def n_frames(self):\n        return self._nimages\n\n    @property\n    def is_animated(self):\n        return self._nimages > 1\n\n    # 1st image index is zero (although SPIDER imgnumber starts at 1)\n    def tell(self):\n        if self.imgnumber < 1:\n            return 0\n        else:\n            return self.imgnumber - 1\n\n    def seek(self, frame):\n        if self.istack == 0:\n            raise EOFError(\"attempt to seek in a non-stack file\")\n        if frame >= self._nimages:\n            raise EOFError(\"attempt to seek past end of file\")\n        self.stkoffset = self.hdrlen + frame * (self.hdrlen + self.imgbytes)\n        self.fp = self.__fp\n        self.fp.seek(self.stkoffset)\n        self._open()\n\n    # returns a byte image after rescaling to 0..255\n    def convert2byte(self, depth=255):\n        (minimum, maximum) = self.getextrema()\n        m = 1\n        if maximum != minimum:\n            m = depth / (maximum-minimum)\n        b = -m * minimum\n        return self.point(lambda i, m=m, b=b: i * m + b).convert(\"L\")\n\n    # returns a ImageTk.PhotoImage object, after rescaling to 0..255\n    def tkPhotoImage(self):\n        from PIL import ImageTk\n        return ImageTk.PhotoImage(self.convert2byte(), palette=256)\n\n\n# --------------------------------------------------------------------\n# Image series\n\n# given a list of filenames, return a list of images\ndef loadImageSeries(filelist=None):\n    \" create a list of Image.images for use in montage \"\n    if filelist is None or len(filelist) < 1:\n        return\n\n    imglist = []\n    for img in filelist:\n        if not os.path.exists(img):\n            print(\"unable to find %s\" % img)\n            continue\n        try:\n            im = Image.open(img).convert2byte()\n        except:\n            if not isSpiderImage(img):\n                print(img + \" is not a Spider image file\")\n            continue\n        im.info['filename'] = img\n        imglist.append(im)\n    return imglist\n\n\n# --------------------------------------------------------------------\n# For saving images in Spider format\n\ndef makeSpiderHeader(im):\n    nsam, nrow = im.size\n    lenbyt = nsam * 4  # There are labrec records in the header\n    labrec = 1024 / lenbyt\n    if 1024 % lenbyt != 0:\n        labrec += 1\n    labbyt = labrec * lenbyt\n    hdr = []\n    nvalues = int(labbyt / 4)\n    for i in range(nvalues):\n        hdr.append(0.0)\n\n    if len(hdr) < 23:\n        return []\n\n    # NB these are Fortran indices\n    hdr[1] = 1.0             # nslice (=1 for an image)\n    hdr[2] = float(nrow)     # number of rows per slice\n    hdr[5] = 1.0             # iform for 2D image\n    hdr[12] = float(nsam)    # number of pixels per line\n    hdr[13] = float(labrec)  # number of records in file header\n    hdr[22] = float(labbyt)  # total number of bytes in header\n    hdr[23] = float(lenbyt)  # record length in bytes\n\n    # adjust for Fortran indexing\n    hdr = hdr[1:]\n    hdr.append(0.0)\n    # pack binary data into a string\n    hdrstr = []\n    for v in hdr:\n        hdrstr.append(struct.pack('f', v))\n    return hdrstr\n\n\ndef _save(im, fp, filename):\n    if im.mode[0] != \"F\":\n        im = im.convert('F')\n\n    hdr = makeSpiderHeader(im)\n    if len(hdr) < 256:\n        raise IOError(\"Error creating Spider header\")\n\n    # write the SPIDER header\n    try:\n        fp = open(filename, 'wb')\n    except:\n        raise IOError(\"Unable to open %s for writing\" % filename)\n    fp.writelines(hdr)\n\n    rawmode = \"F;32NF\"  # 32-bit native floating point\n    ImageFile._save(im, fp, [(\"raw\", (0, 0)+im.size, 0, (rawmode, 0, 1))])\n\n    fp.close()\n\n\ndef _save_spider(im, fp, filename):\n    # get the filename extension and register it with Image\n    ext = os.path.splitext(filename)[1]\n    Image.register_extension(SpiderImageFile.format, ext)\n    _save(im, fp, filename)\n\n# --------------------------------------------------------------------\n\nImage.register_open(SpiderImageFile.format, SpiderImageFile)\nImage.register_save(SpiderImageFile.format, _save_spider)\n\nif __name__ == \"__main__\":\n\n    if not sys.argv[1:]:\n        print(\"Syntax: python SpiderImagePlugin.py [infile] [outfile]\")\n        sys.exit()\n\n    filename = sys.argv[1]\n    if not isSpiderImage(filename):\n        print(\"input image must be in Spider format\")\n        sys.exit()\n\n    outfile = \"\"\n    if len(sys.argv[1:]) > 1:\n        outfile = sys.argv[2]\n\n    im = Image.open(filename)\n    print(\"image: \" + str(im))\n    print(\"format: \" + str(im.format))\n    print(\"size: \" + str(im.size))\n    print(\"mode: \" + str(im.mode))\n    print(\"max, min: \", end=' ')\n    print(im.getextrema())\n\n    if outfile != \"\":\n        # perform some image operation\n        im = im.transpose(Image.FLIP_LEFT_RIGHT)\n        print(\n            \"saving a flipped version of %s as %s \" %\n            (os.path.basename(filename), outfile))\n        im.save(outfile, SpiderImageFile.format)\n"}
A user will ask you to solve a task. You should first draft your thinking process (inner monologue). Then, generate the solution.

Your response format must follow the template below:
<think>
Your thoughts or/and draft, like working through an exercise on scratch paper. Be as casual and as long as you want until you are confident to generate a correct solution.
</think>
<solution>
Final solution presented to the user.
</solution>
system
We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[ISSUE]
**Title:** Unable to Save Spider Image to File-like Object Without Filename

**Description:**
When attempting to save a Spider format image using a file-like object, the operation fails because the system tries to open a filename for writing. This prevents saving images to in-memory file-like objects such as `TemporaryFile`.

**Example Code:**
```python
from PIL import Image, SpiderImagePlugin
import tempfile

im = Image.open("hopper.spider")
with tempfile.TemporaryFile() as fp:
    im.save(fp, "SPIDER")
```

**Expected Behavior:**
The image should be saved successfully to the provided file-like object without requiring a filename.

**Actual Behavior:**
An `OSError` is raised with the message "Unable to open  for writing" because no filename is provided.

[/ISSUE]
--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.

--- BEGIN FILE ---
```
### PIL/SpiderImagePlugin.py
#
# The Python Imaging Library.
#
# SPIDER image file handling
#
# History:
# 2004-08-02    Created BB
# 2006-03-02    added save method
# 2006-03-13    added support for stack images
#
# Copyright (c) 2004 by Health Research Inc. (HRI) RENSSELAER, NY 12144.
# Copyright (c) 2004 by William Baxter.
# Copyright (c) 2004 by Secret Labs AB.
# Copyright (c) 2004 by Fredrik Lundh.
#

##
# Image plugin for the Spider image format.  This format is is used
# by the SPIDER software, in processing image data from electron
# microscopy and tomography.
##

#
# SpiderImagePlugin.py
#
# The Spider image format is used by SPIDER software, in processing
# image data from electron microscopy and tomography.
#
# Spider home page:
# https://spider.wadsworth.org/spider_doc/spider/docs/spider.html
#
# Details about the Spider image format:
# https://spider.wadsworth.org/spider_doc/spider/docs/image_doc.html
#

from __future__ import print_function

from PIL import Image, ImageFile
import os
import struct
import sys


def isInt(f):
    try:
        i = int(f)
        if f-i == 0:
            return 1
        else:
            return 0
    except ValueError:
        return 0
    except OverflowError:
        return 0

iforms = [1, 3, -11, -12, -21, -22]


# There is no magic number to identify Spider files, so just check a
# series of header locations to see if they have reasonable values.
# Returns no. of bytes in the header, if it is a valid Spider header,
# otherwise returns 0

def isSpiderHeader(t):
    h = (99,) + t   # add 1 value so can use spider header index start=1
    # header values 1,2,5,12,13,22,23 should be integers
    for i in [1, 2, 5, 12, 13, 22, 23]:
        if not isInt(h[i]):
            return 0
    # check iform
    iform = int(h[5])
    if iform not in iforms:
        return 0
    # check other header values
    labrec = int(h[13])   # no. records in file header
    labbyt = int(h[22])   # total no. of bytes in header
    lenbyt = int(h[23])   # record length in bytes
    # print("labrec = %d, labbyt = %d, lenbyt = %d" % (labrec,labbyt,lenbyt))
    if labbyt != (labrec * lenbyt):
        return 0
    # looks like a valid header
    return labbyt


def isSpiderImage(filename):
    with open(filename, 'rb') as fp:
        f = fp.read(92)   # read 23 * 4 bytes
    t = struct.unpack('>23f', f)  # try big-endian first
    hdrlen = isSpiderHeader(t)
    if hdrlen == 0:
        t = struct.unpack('<23f', f)  # little-endian
        hdrlen = isSpiderHeader(t)
    return hdrlen


class SpiderImageFile(ImageFile.ImageFile):

    format = "SPIDER"
    format_description = "Spider 2D image"
    _close_exclusive_fp_after_loading = False

    def _open(self):
        # check header
        n = 27 * 4  # read 27 float values
        f = self.fp.read(n)

        try:
            self.bigendian = 1
            t = struct.unpack('>27f', f)  # try big-endian first
            hdrlen = isSpiderHeader(t)
            if hdrlen == 0:
                self.bigendian = 0
                t = struct.unpack('<27f', f)  # little-endian
                hdrlen = isSpiderHeader(t)
            if hdrlen == 0:
                raise SyntaxError("not a valid Spider file")
        except struct.error:
            raise SyntaxError("not a valid Spider file")

        h = (99,) + t   # add 1 value : spider header index starts at 1
        iform = int(h[5])
        if iform != 1:
            raise SyntaxError("not a Spider 2D image")

        self.size = int(h[12]), int(h[2])  # size in pixels (width, height)
        self.istack = int(h[24])
        self.imgnumber = int(h[27])

        if self.istack == 0 and self.imgnumber == 0:
            # stk=0, img=0: a regular 2D image
            offset = hdrlen
            self._nimages = 1
        elif self.istack > 0 and self.imgnumber == 0:
            # stk>0, img=0: Opening the stack for the first time
            self.imgbytes = int(h[12]) * int(h[2]) * 4
            self.hdrlen = hdrlen
            self._nimages = int(h[26])
            # Point to the first image in the stack
            offset = hdrlen * 2
            self.imgnumber = 1
        elif self.istack == 0 and self.imgnumber > 0:
            # stk=0, img>0: an image within the stack
            offset = hdrlen + self.stkoffset
            self.istack = 2  # So Image knows it's still a stack
        else:
            raise SyntaxError("inconsistent stack header values")

        if self.bigendian:
            self.rawmode = "F;32BF"
        else:
            self.rawmode = "F;32F"
        self.mode = "F"

        self.tile = [
            ("raw", (0, 0) + self.size, offset,
                (self.rawmode, 0, 1))]
        self.__fp = self.fp  # FIXME: hack

    @property
    def n_frames(self):
        return self._nimages

    @property
    def is_animated(self):
        return self._nimages > 1

    # 1st image index is zero (although SPIDER imgnumber starts at 1)
    def tell(self):
        if self.imgnumber < 1:
            return 0
        else:
            return self.imgnumber - 1

    def seek(self, frame):
        if self.istack == 0:
            raise EOFError("attempt to seek in a non-stack file")
        if frame >= self._nimages:
            raise EOFError("attempt to seek past end of file")
        self.stkoffset = self.hdrlen + frame * (self.hdrlen + self.imgbytes)
        self.fp = self.__fp
        self.fp.seek(self.stkoffset)
        self._open()

    # returns a byte image after rescaling to 0..255
    def convert2byte(self, depth=255):
        (minimum, maximum) = self.getextrema()
        m = 1
        if maximum != minimum:
            m = depth / (maximum-minimum)
        b = -m * minimum
        return self.point(lambda i, m=m, b=b: i * m + b).convert("L")

    # returns a ImageTk.PhotoImage object, after rescaling to 0..255
    def tkPhotoImage(self):
        from PIL import ImageTk
        return ImageTk.PhotoImage(self.convert2byte(), palette=256)


# --------------------------------------------------------------------
# Image series

# given a list of filenames, return a list of images
def loadImageSeries(filelist=None):
    " create a list of Image.images for use in montage "
    if filelist is None or len(filelist) < 1:
        return

    imglist = []
    for img in filelist:
        if not os.path.exists(img):
            print("unable to find %s" % img)
            continue
        try:
            im = Image.open(img).convert2byte()
        except:
            if not isSpiderImage(img):
                print(img + " is not a Spider image file")
            continue
        im.info['filename'] = img
        imglist.append(im)
    return imglist


# --------------------------------------------------------------------
# For saving images in Spider format

def makeSpiderHeader(im):
    nsam, nrow = im.size
    lenbyt = nsam * 4  # There are labrec records in the header
    labrec = 1024 / lenbyt
    if 1024 % lenbyt != 0:
        labrec += 1
    labbyt = labrec * lenbyt
    hdr = []
    nvalues = int(labbyt / 4)
    for i in range(nvalues):
        hdr.append(0.0)

    if len(hdr) < 23:
        return []

    # NB these are Fortran indices
    hdr[1] = 1.0             # nslice (=1 for an image)
    hdr[2] = float(nrow)     # number of rows per slice
    hdr[5] = 1.0             # iform for 2D image
    hdr[12] = float(nsam)    # number of pixels per line
    hdr[13] = float(labrec)  # number of records in file header
    hdr[22] = float(labbyt)  # total number of bytes in header
    hdr[23] = float(lenbyt)  # record length in bytes

    # adjust for Fortran indexing
    hdr = hdr[1:]
    hdr.append(0.0)
    # pack binary data into a string
    hdrstr = []
    for v in hdr:
        hdrstr.append(struct.pack('f', v))
    return hdrstr


def _save(im, fp, filename):
    if im.mode[0] != "F":
        im = im.convert('F')

    hdr = makeSpiderHeader(im)
    if len(hdr) < 256:
        raise IOError("Error creating Spider header")

    # write the SPIDER header
    try:
        fp = open(filename, 'wb')
    except:
        raise IOError("Unable to open %s for writing" % filename)
    fp.writelines(hdr)

    rawmode = "F;32NF"  # 32-bit native floating point
    ImageFile._save(im, fp, [("raw", (0, 0)+im.size, 0, (rawmode, 0, 1))])

    fp.close()


def _save_spider(im, fp, filename):
    # get the filename extension and register it with Image
    ext = os.path.splitext(filename)[1]
    Image.register_extension(SpiderImageFile.format, ext)
    _save(im, fp, filename)

# --------------------------------------------------------------------

Image.register_open(SpiderImageFile.format, SpiderImageFile)
Image.register_save(SpiderImageFile.format, _save_spider)

if __name__ == "__main__":

    if not sys.argv[1:]:
        print("Syntax: python SpiderImagePlugin.py [infile] [outfile]")
        sys.exit()

    filename = sys.argv[1]
    if not isSpiderImage(filename):
        print("input image must be in Spider format")
        sys.exit()

    outfile = ""
    if len(sys.argv[1:]) > 1:
        outfile = sys.argv[2]

    im = Image.open(filename)
    print("image: " + str(im))
    print("format: " + str(im.format))
    print("size: " + str(im.size))
    print("mode: " + str(im.mode))
    print("max, min: ", end=' ')
    print(im.getextrema())

    if outfile != "":
        # perform some image operation
        im = im.transpose(Image.FLIP_LEFT_RIGHT)
        print(
            "saving a flipped version of %s as %s " %
            (os.path.basename(filename), outfile))
        im.save(outfile, SpiderImageFile.format)

```
--- END FILE ---

Please first localize the bug based on the issue statement, and then generate *SEARCH/REPLACE* edits to fix the issue.

Every *SEARCH/REPLACE* edit must use this format:
1. The file path
2. The start of search block: <<<<<<< SEARCH
3. A contiguous chunk of lines to search for in the existing source code
4. The dividing line: =======
5. The lines to replace into the source code
6. The end of the replace block: >>>>>>> REPLACE

Here is an example:

```python
### mathweb/flask/app.py
<<<<<<< SEARCH
from flask import Flask
=======
import math
from flask import Flask
>>>>>>> REPLACE
```
</solution>

Please note that the *SEARCH/REPLACE* edit REQUIRES PROPER INDENTATION. If you would like to add the line '        print(x)', you must fully write that out, with all those spaces before the code!
Wrap each *SEARCH/REPLACE* edit in a code block as shown in the example above. If you have multiple *SEARCH/REPLACE* edits, use a separate code block for each one.
user