Use this in instances where
    python-magic is MIA and can't be installed
    for whatever reason
511881
def magic_plan_b(filename):
    '''
    
    '''
    cmd = shlex.split('file --mime-type --mime-encoding ' + filename)
    stdout, stderr = Popen(cmd, stdout=PIPE).communicate()
    stdout = stdout.decode("utf-8")
    mime_str = stdout.split(filename + ': ')[1].strip()
    return mime_str
715473
def populate_and_check_magic
      magic = @raw_data[0..3].unpack("N").first

      raise MagicError, magic unless Utils.magic?(magic)
      raise FatBinaryError if Utils.fat_magic?(magic)

      @endianness = Utils.little_magic?(magic) ? :little : :big

      magic
    end
1353935
def install(self, dependency):
        """"""
        if not self.pip_installed:
            logger.info("Need to install a dependency with pip, but no builtin, "
                        "doing it manually (just wait a little, all should go well)")
            self._brute_force_install_pip()

        # split to pass several tokens on multiword dependency (this is very specific for '-e' on
        # external requirements, but implemented generically; note that this does not apply for
        # normal reqs, because even if it originally is 'foo > 1.2', after parsing it loses the
        # internal spaces)
        str_dep = str(dependency)
        args = [self.pip_exe, "install"] + str_dep.split()

        if self.options:
            for option in self.options:
                args.extend(option.split())
        logger.info("Installing dependency: %r", str_dep)
        try:
            helpers.logged_exec(args)
        except helpers.ExecutionError as error:
            error.dump_to_log(logger)
            raise error
        except Exception as error:
            logger.exception("Error installing %s: %s", str_dep, error)
            raise error
1037611
def _magic_data(filename=os.path.join(here, 'magic_data.json')):
    
    with open(filename) as f:
        data = json.load(f)
    headers = [_create_puremagic(x) for x in data['headers']]
    footers = [_create_puremagic(x) for x in data['footers']]
    return headers, footers
460035
def install_python(python, runas=None):
    '''
    
    '''
    python = re.sub(r'^python-', '', python)

    env = None
    env_list = []

    if __grains__['os'] in ('FreeBSD', 'NetBSD', 'OpenBSD'):
        env_list.append('MAKE=gmake')

    if __salt__['config.option']('pyenv.build_env'):
        env_list.append(__salt__['config.option']('pyenv.build_env'))

    if env_list:
        env = ' '.join(env_list)

    ret = {}
    ret = _pyenv_exec('install', python, env=env, runas=runas, ret=ret)
    if ret['retcode'] == 0:
        rehash(runas=runas)
        return ret['stderr']
    else:
        # Cleanup the failed installation so it doesn't list as installed
        uninstall_python(python, runas=runas)
        return False
8145
def _unset_magic_constants(self):
        
        if '__FILE__' in self._replace:
            del self._replace['__FILE__']

        if '__ROUTINE__' in self._replace:
            del self._replace['__ROUTINE__']

        if '__DIR__' in self._replace:
            del self._replace['__DIR__']

        if '__LINE__' in self._replace:
            del self._replace['__LINE__']
1312345
def install_python(home_dir, lib_dir, inc_dir, bin_dir, site_packages, clear, symlink=True):
    """"""
    if sys.executable.startswith(bin_dir):
        print('Please use the *system* python to run this script')
        return

    if clear:
        rmtree(lib_dir)
        ## FIXME: why not delete it?
        ## Maybe it should delete everything with #!/path/to/venv/python in it
        logger.notify('Not deleting %s', bin_dir)

    if hasattr(sys, 'real_prefix'):
        logger.notify('Using real prefix %r' % sys.real_prefix)
        prefix = sys.real_prefix
    elif hasattr(sys, 'base_prefix'):
        logger.notify('Using base prefix %r' % sys.base_prefix)
        prefix = sys.base_prefix
    else:
        prefix = sys.prefix
    mkdir(lib_dir)
    fix_lib64(lib_dir, symlink)
    stdlib_dirs = [os.path.dirname(os.__file__)]
    if is_win:
        stdlib_dirs.append(join(os.path.dirname(stdlib_dirs[0]), 'DLLs'))
    elif is_darwin:
        stdlib_dirs.append(join(stdlib_dirs[0], 'site-packages'))
    if hasattr(os, 'symlink'):
        logger.info('Symlinking Python bootstrap modules')
    else:
        logger.info('Copying Python bootstrap modules')
    logger.indent += 2
    try:
        # copy required files...
        for stdlib_dir in stdlib_dirs:
            if not os.path.isdir(stdlib_dir):
                continue
            for fn in os.listdir(stdlib_dir):
                bn = os.path.splitext(fn)[0]
                if fn != 'site-packages' and bn in REQUIRED_FILES:
                    copyfile(join(stdlib_dir, fn), join(lib_dir, fn), symlink)
        # ...and modules
        copy_required_modules(home_dir, symlink)
    finally:
        logger.indent -= 2
    # ...copy tcl/tk
    if is_win:
        copy_tcltk(prefix, home_dir, symlink)
    mkdir(join(lib_dir, 'site-packages'))
    import site
    site_filename = site.__file__
    if site_filename.endswith('.pyc') or site_filename.endswith('.pyo'):
        site_filename = site_filename[:-1]
    elif site_filename.endswith('$py.class'):
        site_filename = site_filename.replace('$py.class', '.py')
    site_filename_dst = change_prefix(site_filename, home_dir)
    site_dir = os.path.dirname(site_filename_dst)
    writefile(site_filename_dst, SITE_PY)
    writefile(join(site_dir, 'orig-prefix.txt'), prefix)
    site_packages_filename = join(site_dir, 'no-global-site-packages.txt')
    if not site_packages:
        writefile(site_packages_filename, '')

    if is_pypy or is_win:
        stdinc_dir = join(prefix, 'include')
    else:
        stdinc_dir = join(prefix, 'include', py_version + abiflags)
    if os.path.exists(stdinc_dir):
        copyfile(stdinc_dir, inc_dir, symlink)
    else:
        logger.debug('No include dir %s' % stdinc_dir)

    platinc_dir = distutils.sysconfig.get_python_inc(plat_specific=1)
    if platinc_dir != stdinc_dir:
        platinc_dest = distutils.sysconfig.get_python_inc(
            plat_specific=1, prefix=home_dir)
        if platinc_dir == platinc_dest:
            # Do platinc_dest manually due to a CPython bug;
            # not http://bugs.python.org/issue3386 but a close cousin
            platinc_dest = subst_path(platinc_dir, prefix, home_dir)
        if platinc_dest:
            # PyPy's stdinc_dir and prefix are relative to the original binary
            # (traversing virtualenvs), whereas the platinc_dir is relative to
            # the inner virtualenv and ignores the prefix argument.
            # This seems more evolved than designed.
            copyfile(platinc_dir, platinc_dest, symlink)

    # pypy never uses exec_prefix, just ignore it
    if sys.exec_prefix != prefix and not is_pypy:
        if is_win:
            exec_dir = join(sys.exec_prefix, 'lib')
        elif is_jython:
            exec_dir = join(sys.exec_prefix, 'Lib')
        else:
            exec_dir = join(sys.exec_prefix, 'lib', py_version)
        for fn in os.listdir(exec_dir):
            copyfile(join(exec_dir, fn), join(lib_dir, fn), symlink)

    if is_jython:
        # Jython has either jython-dev.jar and javalib/ dir, or just
        # jython.jar
        for name in 'jython-dev.jar', 'javalib', 'jython.jar':
            src = join(prefix, name)
            if os.path.exists(src):
                copyfile(src, join(home_dir, name), symlink)
        # XXX: registry should always exist after Jython 2.5rc1
        src = join(prefix, 'registry')
        if os.path.exists(src):
            copyfile(src, join(home_dir, 'registry'), symlink=False)
        copyfile(join(prefix, 'cachedir'), join(home_dir, 'cachedir'),
                 symlink=False)

    mkdir(bin_dir)
    py_executable = join(bin_dir, os.path.basename(sys.executable))
    if 'Python.framework' in prefix:
        # OS X framework builds cause validation to break
        # https://github.com/pypa/virtualenv/issues/322
        if os.environ.get('__PYVENV_LAUNCHER__'):
            del os.environ["__PYVENV_LAUNCHER__"]
        if re.search(r'/Python(?:-32|-64)*$', py_executable):
            # The name of the python executable is not quite what
            # we want, rename it.
            py_executable = os.path.join(
                    os.path.dirname(py_executable), 'python')

    logger.notify('New %s executable in %s', expected_exe, py_executable)
    pcbuild_dir = os.path.dirname(sys.executable)
    pyd_pth = os.path.join(lib_dir, 'site-packages', 'virtualenv_builddir_pyd.pth')
    if is_win and os.path.exists(os.path.join(pcbuild_dir, 'build.bat')):
        logger.notify('Detected python running from build directory %s', pcbuild_dir)
        logger.notify('Writing .pth file linking to build directory for *.pyd files')
        writefile(pyd_pth, pcbuild_dir)
    else:
        pcbuild_dir = None
        if os.path.exists(pyd_pth):
            logger.info('Deleting %s (not Windows env or not build directory python)' % pyd_pth)
            os.unlink(pyd_pth)

    if sys.executable != py_executable:
        ## FIXME: could I just hard link?
        executable = sys.executable
        shutil.copyfile(executable, py_executable)
        make_exe(py_executable)
        if is_win or is_cygwin:
            pythonw = os.path.join(os.path.dirname(sys.executable), 'pythonw.exe')
            if os.path.exists(pythonw):
                logger.info('Also created pythonw.exe')
                shutil.copyfile(pythonw, os.path.join(os.path.dirname(py_executable), 'pythonw.exe'))
            python_d = os.path.join(os.path.dirname(sys.executable), 'python_d.exe')
            python_d_dest = os.path.join(os.path.dirname(py_executable), 'python_d.exe')
            if os.path.exists(python_d):
                logger.info('Also created python_d.exe')
                shutil.copyfile(python_d, python_d_dest)
            elif os.path.exists(python_d_dest):
                logger.info('Removed python_d.exe as it is no longer at the source')
                os.unlink(python_d_dest)
            # we need to copy the DLL to enforce that windows will load the correct one.
            # may not exist if we are cygwin.
            py_executable_dll = 'python%s%s.dll' % (
                sys.version_info[0], sys.version_info[1])
            py_executable_dll_d = 'python%s%s_d.dll' % (
                sys.version_info[0], sys.version_info[1])
            pythondll = os.path.join(os.path.dirname(sys.executable), py_executable_dll)
            pythondll_d = os.path.join(os.path.dirname(sys.executable), py_executable_dll_d)
            pythondll_d_dest = os.path.join(os.path.dirname(py_executable), py_executable_dll_d)
            if os.path.exists(pythondll):
                logger.info('Also created %s' % py_executable_dll)
                shutil.copyfile(pythondll, os.path.join(os.path.dirname(py_executable), py_executable_dll))
            if os.path.exists(pythondll_d):
                logger.info('Also created %s' % py_executable_dll_d)
                shutil.copyfile(pythondll_d, pythondll_d_dest)
            elif os.path.exists(pythondll_d_dest):
                logger.info('Removed %s as the source does not exist' % pythondll_d_dest)
                os.unlink(pythondll_d_dest)
        if is_pypy:
            # make a symlink python --> pypy-c
            python_executable = os.path.join(os.path.dirname(py_executable), 'python')
            if sys.platform in ('win32', 'cygwin'):
                python_executable += '.exe'
            logger.info('Also created executable %s' % python_executable)
            copyfile(py_executable, python_executable, symlink)

            if is_win:
                for name in ['libexpat.dll', 'libpypy.dll', 'libpypy-c.dll',
                            'libeay32.dll', 'ssleay32.dll', 'sqlite3.dll',
                            'tcl85.dll', 'tk85.dll']:
                    src = join(prefix, name)
                    if os.path.exists(src):
                        copyfile(src, join(bin_dir, name), symlink)

                for d in sys.path:
                    if d.endswith('lib_pypy'):
                        break
                else:
                    logger.fatal('Could not find lib_pypy in sys.path')
                    raise SystemExit(3)
                logger.info('Copying lib_pypy')
                copyfile(d, os.path.join(home_dir, 'lib_pypy'), symlink)

    if os.path.splitext(os.path.basename(py_executable))[0] != expected_exe:
        secondary_exe = os.path.join(os.path.dirname(py_executable),
                                     expected_exe)
        py_executable_ext = os.path.splitext(py_executable)[1]
        if py_executable_ext.lower() == '.exe':
            # python2.4 gives an extension of '.4' :P
            secondary_exe += py_executable_ext
        if os.path.exists(secondary_exe):
            logger.warn('Not overwriting existing %s script %s (you must use %s)'
                        % (expected_exe, secondary_exe, py_executable))
        else:
            logger.notify('Also creating executable in %s' % secondary_exe)
            shutil.copyfile(sys.executable, secondary_exe)
            make_exe(secondary_exe)

    if '.framework' in prefix:
        if 'Python.framework' in prefix:
            logger.debug('MacOSX Python framework detected')
            # Make sure we use the embedded interpreter inside
            # the framework, even if sys.executable points to
            # the stub executable in ${sys.prefix}/bin
            # See http://groups.google.com/group/python-virtualenv/
            #                              browse_thread/thread/17cab2f85da75951
            original_python = os.path.join(
                prefix, 'Resources/Python.app/Contents/MacOS/Python')
        if 'EPD' in prefix:
            logger.debug('EPD framework detected')
            original_python = os.path.join(prefix, 'bin/python')
        shutil.copy(original_python, py_executable)

        # Copy the framework's dylib into the virtual
        # environment
        virtual_lib = os.path.join(home_dir, '.Python')

        if os.path.exists(virtual_lib):
            os.unlink(virtual_lib)
        copyfile(
            os.path.join(prefix, 'Python'),
            virtual_lib,
            symlink)

        # And then change the install_name of the copied python executable
        try:
            mach_o_change(py_executable,
                          os.path.join(prefix, 'Python'),
                          '@executable_path/../.Python')
        except:
            e = sys.exc_info()[1]
            logger.warn("Could not call mach_o_change: %s. "
                        "Trying to call install_name_tool instead." % e)
            try:
                call_subprocess(
                    ["install_name_tool", "-change",
                     os.path.join(prefix, 'Python'),
                     '@executable_path/../.Python',
                     py_executable])
            except:
                logger.fatal("Could not call install_name_tool -- you must "
                             "have Apple's development tools installed")
                raise

    if not is_win:
        # Ensure that 'python', 'pythonX' and 'pythonX.Y' all exist
        py_exe_version_major = 'python%s' % sys.version_info[0]
        py_exe_version_major_minor = 'python%s.%s' % (
            sys.version_info[0], sys.version_info[1])
        py_exe_no_version = 'python'
        required_symlinks = [ py_exe_no_version, py_exe_version_major,
                         py_exe_version_major_minor ]

        py_executable_base = os.path.basename(py_executable)

        if py_executable_base in required_symlinks:
            # Don't try to symlink to yourself.
            required_symlinks.remove(py_executable_base)

        for pth in required_symlinks:
            full_pth = join(bin_dir, pth)
            if os.path.exists(full_pth):
                os.unlink(full_pth)
            if symlink:
                os.symlink(py_executable_base, full_pth)
            else:
                copyfile(py_executable, full_pth, symlink)

    if is_win and ' ' in py_executable:
        # There's a bug with subprocess on Windows when using a first
        # argument that has a space in it.  Instead we have to quote
        # the value:
        py_executable = '"%s"' % py_executable
    # NOTE: keep this check as one line, cmd.exe doesn't cope with line breaks
    cmd = [py_executable, '-c', 'import sys;out=sys.stdout;'
        'getattr(out, "buffer", out).write(sys.prefix.encode("utf-8"))']
    logger.info('Testing executable with %s %s "%s"' % tuple(cmd))
    try:
        proc = subprocess.Popen(cmd,
                            stdout=subprocess.PIPE)
        proc_stdout, proc_stderr = proc.communicate()
    except OSError:
        e = sys.exc_info()[1]
        if e.errno == errno.EACCES:
            logger.fatal('ERROR: The executable %s could not be run: %s' % (py_executable, e))
            sys.exit(100)
        else:
            raise e

    proc_stdout = proc_stdout.strip().decode("utf-8")
    proc_stdout = os.path.normcase(os.path.abspath(proc_stdout))
    norm_home_dir = os.path.normcase(os.path.abspath(home_dir))
    if hasattr(norm_home_dir, 'decode'):
        norm_home_dir = norm_home_dir.decode(sys.getfilesystemencoding())
    if proc_stdout != norm_home_dir:
        logger.fatal(
            'ERROR: The executable %s is not functioning' % py_executable)
        logger.fatal(
            'ERROR: It thinks sys.prefix is %r (should be %r)'
            % (proc_stdout, norm_home_dir))
        logger.fatal(
            'ERROR: virtualenv is not compatible with this system or executable')
        if is_win:
            logger.fatal(
                'Note: some Windows users have reported this error when they '
                'installed Python for "Only this user" or have multiple '
                'versions of Python installed. Copying the appropriate '
                'PythonXX.dll to the virtualenv Scripts/ directory may fix '
                'this problem.')
        sys.exit(100)
    else:
        logger.info('Got sys.prefix result: %r' % proc_stdout)

    pydistutils = os.path.expanduser('~/.pydistutils.cfg')
    if os.path.exists(pydistutils):
        logger.notify('Please make sure you remove any previous custom paths from '
                      'your %s file.' % pydistutils)
    ## FIXME: really this should be calculated earlier

    fix_local_scheme(home_dir, symlink)

    if site_packages:
        if os.path.exists(site_packages_filename):
            logger.info('Deleting %s' % site_packages_filename)
            os.unlink(site_packages_filename)

    return py_executable
1039385
def clean_python(ctx, dry_run=False):
    """"""
    # MAYBE NOT: "**/__pycache__"
    cleanup_dirs(["build", "dist", "*.egg-info", "**/__pycache__"],
                 dry_run=dry_run)
    if not dry_run:
        ctx.run("py.cleanup")
    cleanup_files(["**/*.pyc", "**/*.pyo", "**/*$py.class"], dry_run=dry_run)
1316180
def _import_lua(load_dependencies=True):
        
        try:
            import lua
        except ImportError:
            raise RuntimeError("Lua not installed")

        lua_globals = lua.globals()
        if load_dependencies:
            Script._import_lua_dependencies(lua, lua_globals)
        return lua, lua_globals
274540
def check_installation(cur_file):
  """"""
  cur_dir = os.path.split(os.path.dirname(os.path.abspath(cur_file)))[0]
  ch_dir = os.path.split(cleverhans.__path__[0])[0]
  if cur_dir != ch_dir:
    warnings.warn("It appears that you have at least two versions of "
                  "cleverhans installed, one at %s and one at"
                  " %s. You are running the tutorial script from the "
                  "former but python imported the library module from the "
                  "latter. This may cause errors, for example if the tutorial"
                  " version is newer than the library version and attempts to"
                  " call new features." % (cur_dir, ch_dir))
1065709
def install_lib(url, replace_existing=False, fix_wprogram=True):
    
    d = tmpdir(tmpdir())
    f = download(url)
    Archive(f).extractall(d)

    clean_dir(d)
    d, src_dlib = find_lib_dir(d)
    move_examples(d, src_dlib)
    fix_examples_dir(src_dlib)
    if fix_wprogram:
        fix_wprogram_in_files(src_dlib)

    targ_dlib = libraries_dir() / src_dlib.name
    if targ_dlib.exists():
        log.debug('library already exists: %s', targ_dlib)
        if replace_existing:
            log.debug('remove %s', targ_dlib)
            targ_dlib.rmtree()
        else:
            raise ConfduinoError('library already exists:' + targ_dlib)

    log.debug('move %s -> %s', src_dlib, targ_dlib)
    src_dlib.move(targ_dlib)

    libraries_dir().copymode(targ_dlib)
    for x in targ_dlib.walk():
        libraries_dir().copymode(x)
    return targ_dlib.name
1106973
def python_executable(self):
        """"""
        return self.get(property_name='python_executable',
                        default=sys.executable or os.path.join(self.install_prefix, 'bin', 'python'))
1374004
def rerun(version="3.7.0"):
    
    from commandlib import Command

    Command(DIR.gen.joinpath("py{0}".format(version), "bin", "python"))(
        DIR.gen.joinpath("state", "examplepythoncode.py")
    ).in_dir(DIR.gen.joinpath("state")).run()
978415
def _python_installed(ret, python, user=None):
    '''
    
    '''
    default = __salt__['pyenv.default'](runas=user)
    for version in __salt__['pyenv.versions'](user):
        if version == python:
            ret['result'] = True
            ret['comment'] = 'Requested python exists.'
            ret['default'] = default == python
            break

    return ret
966722
def other_dependancies(server, environment):
    """"""
    server = server.lower()
    # Pillow is not on TestPyPI
    if server is "local":
        pass
    elif server in ["testpypi", "pypitest"]:
        print("  **Install Pillow**")
        subprocess.call([environment + '\\Scripts\\pip.exe', 'install', 'Pillow'], shell=True)
    elif server is "pypi":
        pass
    else:
        print("  **Nothing more to install**")
950150
def install_python(home_dir, lib_dir, inc_dir, bin_dir, site_packages, clear):
    """"""
    if sys.executable.startswith(bin_dir):
        print 'Please use the *system* python to run this script'
        return

    if clear:
        rmtree(lib_dir)
        ## FIXME: why not delete it?
        ## Maybe it should delete everything with #!/path/to/venv/python in it
        logger.notify('Not deleting %s', bin_dir)

    if hasattr(sys, 'real_prefix'):
        logger.notify('Using real prefix %r' % sys.real_prefix)
        prefix = sys.real_prefix
    else:
        prefix = sys.prefix
    mkdir(lib_dir)
    fix_lib64(lib_dir)
    stdlib_dirs = [os.path.dirname(os.__file__)]
    if sys.platform == 'win32':
        stdlib_dirs.append(join(os.path.dirname(stdlib_dirs[0]), 'DLLs'))
    elif sys.platform == 'darwin':
        stdlib_dirs.append(join(stdlib_dirs[0], 'site-packages'))
    for stdlib_dir in stdlib_dirs:
        if not os.path.isdir(stdlib_dir):
            continue
        if hasattr(os, 'symlink'):
            logger.info('Symlinking Python bootstrap modules')
        else:
            logger.info('Copying Python bootstrap modules')
        logger.indent += 2
        try:
            for fn in os.listdir(stdlib_dir):
                if fn != 'site-packages' and os.path.splitext(fn)[0] in REQUIRED_MODULES:
                    copyfile(join(stdlib_dir, fn), join(lib_dir, fn))
        finally:
            logger.indent -= 2
    mkdir(join(lib_dir, 'site-packages'))
    writefile(join(lib_dir, 'site.py'), SITE_PY)
    writefile(join(lib_dir, 'orig-prefix.txt'), prefix)
    site_packages_filename = join(lib_dir, 'no-global-site-packages.txt')
    if not site_packages:
        writefile(site_packages_filename, '')
    else:
        if os.path.exists(site_packages_filename):
            logger.info('Deleting %s' % site_packages_filename)
            os.unlink(site_packages_filename)

    stdinc_dir = join(prefix, 'include', py_version)
    if os.path.exists(stdinc_dir):
        copyfile(stdinc_dir, inc_dir)
    else:
        logger.debug('No include dir %s' % stdinc_dir)

    if sys.exec_prefix != prefix:
        if sys.platform == 'win32':
            exec_dir = join(sys.exec_prefix, 'lib')
        elif is_jython:
            exec_dir = join(sys.exec_prefix, 'Lib')
        else:
            exec_dir = join(sys.exec_prefix, 'lib', py_version)
        for fn in os.listdir(exec_dir):
            copyfile(join(exec_dir, fn), join(lib_dir, fn))

    if is_jython:
        # Jython has either jython-dev.jar and javalib/ dir, or just
        # jython.jar
        for name in 'jython-dev.jar', 'javalib', 'jython.jar':
            src = join(prefix, name)
            if os.path.exists(src):
                copyfile(src, join(home_dir, name))
        # XXX: registry should always exist after Jython 2.5rc1
        src = join(prefix, 'registry')
        if os.path.exists(src):
            copyfile(src, join(home_dir, 'registry'), symlink=False)
        copyfile(join(prefix, 'cachedir'), join(home_dir, 'cachedir'),
                 symlink=False)

    mkdir(bin_dir)
    py_executable = join(bin_dir, os.path.basename(sys.executable))
    if 'Python.framework' in prefix:
        if re.search(r'/Python(?:-32|-64)*$', py_executable):
            # The name of the python executable is not quite what
            # we want, rename it.
            py_executable = os.path.join(
                    os.path.dirname(py_executable), 'python')

    logger.notify('New %s executable in %s', expected_exe, py_executable)
    if sys.executable != py_executable:
        ## FIXME: could I just hard link?
        executable = sys.executable
        if sys.platform == 'cygwin' and os.path.exists(executable + '.exe'):
            # Cygwin misreports sys.executable sometimes
            executable += '.exe'
            py_executable += '.exe'
            logger.info('Executable actually exists in %s' % executable)
        shutil.copyfile(executable, py_executable)
        make_exe(py_executable)
        if sys.platform == 'win32' or sys.platform == 'cygwin':
            pythonw = os.path.join(os.path.dirname(sys.executable), 'pythonw.exe')
            if os.path.exists(pythonw):
                logger.info('Also created pythonw.exe')
                shutil.copyfile(pythonw, os.path.join(os.path.dirname(py_executable), 'pythonw.exe'))

    if os.path.splitext(os.path.basename(py_executable))[0] != expected_exe:
        secondary_exe = os.path.join(os.path.dirname(py_executable),
                                     expected_exe)
        py_executable_ext = os.path.splitext(py_executable)[1]
        if py_executable_ext == '.exe':
            # python2.4 gives an extension of '.4' :P
            secondary_exe += py_executable_ext
        if os.path.exists(secondary_exe):
            logger.warn('Not overwriting existing %s script %s (you must use %s)'
                        % (expected_exe, secondary_exe, py_executable))
        else:
            logger.notify('Also creating executable in %s' % secondary_exe)
            shutil.copyfile(sys.executable, secondary_exe)
            make_exe(secondary_exe)

    if 'Python.framework' in prefix:
        logger.debug('MacOSX Python framework detected')

        # Make sure we use the the embedded interpreter inside
        # the framework, even if sys.executable points to
        # the stub executable in ${sys.prefix}/bin
        # See http://groups.google.com/group/python-virtualenv/
        #                              browse_thread/thread/17cab2f85da75951
        shutil.copy(
                os.path.join(
                    prefix, 'Resources/Python.app/Contents/MacOS/%s' % os.path.basename(sys.executable)),
                py_executable)

        # Copy the framework's dylib into the virtual
        # environment
        virtual_lib = os.path.join(home_dir, '.Python')

        if os.path.exists(virtual_lib):
            os.unlink(virtual_lib)
        copyfile(
            os.path.join(prefix, 'Python'),
            virtual_lib)

        # And then change the install_name of the copied python executable
        try:
            call_subprocess(
                ["install_name_tool", "-change",
                 os.path.join(prefix, 'Python'),
                 '@executable_path/../.Python',
                 py_executable])
        except:
            logger.fatal(
                "Could not call install_name_tool -- you must have Apple's development tools installed")
            raise

        # Some tools depend on pythonX.Y being present
        py_executable_version = '%s.%s' % (
            sys.version_info[0], sys.version_info[1])
        if not py_executable.endswith(py_executable_version):
            # symlinking pythonX.Y > python
            pth = py_executable + '%s.%s' % (
                    sys.version_info[0], sys.version_info[1])
            if os.path.exists(pth):
                os.unlink(pth)
            os.symlink('python', pth)
        else:
            # reverse symlinking python -> pythonX.Y (with --python)
            pth = join(bin_dir, 'python')
            if os.path.exists(pth):
                os.unlink(pth)
            os.symlink(os.path.basename(py_executable), pth)

    if sys.platform == 'win32' and ' ' in py_executable:
        # There's a bug with subprocess on Windows when using a first
        # argument that has a space in it.  Instead we have to quote
        # the value:
        py_executable = '"%s"' % py_executable
    cmd = [py_executable, '-c', 'import sys; print sys.prefix']
    logger.info('Testing executable with %s %s "%s"' % tuple(cmd))
    proc = subprocess.Popen(cmd,
                            stdout=subprocess.PIPE)
    proc_stdout, proc_stderr = proc.communicate()
    proc_stdout = os.path.normcase(os.path.abspath(proc_stdout.strip()))
    if proc_stdout != os.path.normcase(os.path.abspath(home_dir)):
        logger.fatal(
            'ERROR: The executable %s is not functioning' % py_executable)
        logger.fatal(
            'ERROR: It thinks sys.prefix is %r (should be %r)'
            % (proc_stdout, os.path.normcase(os.path.abspath(home_dir))))
        logger.fatal(
            'ERROR: virtualenv is not compatible with this system or executable')
        if sys.platform == 'win32':
            logger.fatal(
                'Note: some Windows users have reported this error when they installed Python for "Only this user".  The problem may be resolvable if you install Python "For all users".  (See https://bugs.launchpad.net/virtualenv/+bug/352844)')
        sys.exit(100)
    else:
        logger.info('Got sys.prefix result: %r' % proc_stdout)

    pydistutils = os.path.expanduser('~/.pydistutils.cfg')
    if os.path.exists(pydistutils):
        logger.notify('Please make sure you remove any previous custom paths from '
                      'your %s file.' % pydistutils)
    ## FIXME: really this should be calculated earlier
    return py_executable
1275791
def install():
    
    import os, shutil
    
    _ROOT = os.getcwd()
    _PACKAGE_NAME = os.path.basename(_ROOT)
    
    print("Installing [%s] to all python version..." % _PACKAGE_NAME)
    # find all Python release installed on this windows computer
    installed_python_version = list()
    for root, folder_list, _ in os.walk(r"C:\\"):
        for folder in folder_list:
            if folder.startswith("Python"):
                if os.path.exists(os.path.join(root, folder, "pythonw.exe")):
                    installed_python_version.append(folder)
        break
    print("\tYou have installed: {0}".format(", ".join(installed_python_version)))
    
    # remove __pycache__ folder and *.pyc file
    print("\tRemoving *.pyc file ...")
    pyc_folder_list = list()
    for root, folder_list, _ in os.walk(_ROOT):
        if os.path.basename(root) == "__pycache__":
            pyc_folder_list.append(root)
    
    for folder in pyc_folder_list:
        shutil.rmtree(folder)
    print("\t\tall *.pyc file has been removed.")
    
    # install this package to all python version
    for py_root in installed_python_version:
        dst = os.path.join(r"C:\\", py_root, r"Lib\site-packages", _PACKAGE_NAME)
        try:
            shutil.rmtree(dst)
        except:
            pass
        print("\tRemoved %s." % dst)
        shutil.copytree(_ROOT, dst)
        print("\tInstalled %s." % dst)
    
    print("Complete!")