We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Drop Python 3.3 support
This is a placeholder for Pyramid 1.8 to drop Python 3.3 support.

Creating a new issue, splitting it off from https://github.com/Pylons/pyramid/issues/2368.


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `setup.py`
Content:
```
1 ##############################################################################
2 #
3 # Copyright (c) 2008-2013 Agendaless Consulting and Contributors.
4 # All Rights Reserved.
5 #
6 # This software is subject to the provisions of the BSD-like license at
7 # http://www.repoze.org/LICENSE.txt.  A copy of the license should accompany
8 # this distribution.  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL
9 # EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO,
10 # THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND
11 # FITNESS FOR A PARTICULAR PURPOSE
12 #
13 ##############################################################################
14 
15 import os
16 import sys
17 
18 from setuptools import setup, find_packages
19 
20 py_version = sys.version_info[:2]
21 is_pypy = '__pypy__' in sys.builtin_module_names
22 
23 PY3 = py_version[0] == 3
24 
25 if PY3:
26     if py_version < (3, 3) and not is_pypy: # PyPy3 masquerades as Python 3.2...
27         raise RuntimeError('On Python 3, Pyramid requires Python 3.3 or better')
28 else:
29     if py_version < (2, 6):
30         raise RuntimeError('On Python 2, Pyramid requires Python 2.6 or better')
31 
32 here = os.path.abspath(os.path.dirname(__file__))
33 try:
34     with open(os.path.join(here, 'README.rst')) as f:
35         README = f.read()
36     with open(os.path.join(here, 'CHANGES.txt')) as f:
37         CHANGES = f.read()
38 except IOError:
39     README = CHANGES = ''
40 
41 install_requires = [
42     'setuptools',
43     'WebOb >= 1.3.1', # request.domain and CookieProfile
44     'repoze.lru >= 0.4', # py3 compat
45     'zope.interface >= 3.8.0',  # has zope.interface.registry
46     'zope.deprecation >= 3.5.0', # py3 compat
47     'venusian >= 1.0a3', # ``ignore``
48     'translationstring >= 0.4', # py3 compat
49     'PasteDeploy >= 1.5.0', # py3 compat
50     ]
51 
52 tests_require = [
53     'WebTest >= 1.3.1', # py3 compat
54     ]
55 
56 if not PY3:
57     tests_require.append('zope.component>=3.11.0')
58 
59 docs_extras = [
60     'Sphinx >= 1.3.5',
61     'docutils',
62     'repoze.sphinx.autointerface',
63     'pylons_sphinx_latesturl',
64     'pylons-sphinx-themes',
65     'sphinxcontrib-programoutput',
66     ]
67 
68 testing_extras = tests_require + [
69     'nose',
70     'coverage',
71     'virtualenv', # for scaffolding tests
72     ]
73 
74 setup(name='pyramid',
75       version='1.8.dev0',
76       description='The Pyramid Web Framework, a Pylons project',
77       long_description=README + '\n\n' + CHANGES,
78       classifiers=[
79           "Development Status :: 6 - Mature",
80           "Intended Audience :: Developers",
81           "Programming Language :: Python",
82           "Programming Language :: Python :: 2.7",
83           "Programming Language :: Python :: 3",
84           "Programming Language :: Python :: 3.3",
85           "Programming Language :: Python :: 3.4",
86           "Programming Language :: Python :: 3.5",
87           "Programming Language :: Python :: Implementation :: CPython",
88           "Programming Language :: Python :: Implementation :: PyPy",
89           "Framework :: Pyramid",
90           "Topic :: Internet :: WWW/HTTP",
91           "Topic :: Internet :: WWW/HTTP :: WSGI",
92           "License :: Repoze Public License",
93       ],
94       keywords='web wsgi pylons pyramid',
95       author="Chris McDonough, Agendaless Consulting",
96       author_email="pylons-discuss@googlegroups.com",
97       url="https://trypyramid.com",
98       license="BSD-derived (http://www.repoze.org/LICENSE.txt)",
99       packages=find_packages(),
100       include_package_data=True,
101       zip_safe=False,
102       install_requires=install_requires,
103       extras_require={
104           'testing': testing_extras,
105           'docs': docs_extras,
106           },
107       tests_require=tests_require,
108       test_suite="pyramid.tests",
109       entry_points="""\
110         [pyramid.scaffold]
111         starter=pyramid.scaffolds:StarterProjectTemplate
112         zodb=pyramid.scaffolds:ZODBProjectTemplate
113         alchemy=pyramid.scaffolds:AlchemyProjectTemplate
114         [pyramid.pshell_runner]
115         python=pyramid.scripts.pshell:python_shell_runner
116         [console_scripts]
117         pcreate = pyramid.scripts.pcreate:main
118         pserve = pyramid.scripts.pserve:main
119         pshell = pyramid.scripts.pshell:main
120         proutes = pyramid.scripts.proutes:main
121         pviews = pyramid.scripts.pviews:main
122         ptweens = pyramid.scripts.ptweens:main
123         prequest = pyramid.scripts.prequest:main
124         pdistreport = pyramid.scripts.pdistreport:main
125         [paste.server_runner]
126         wsgiref = pyramid.scripts.pserve:wsgiref_server_runner
127         cherrypy = pyramid.scripts.pserve:cherrypy_server_runner
128       """
129       )
130
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -18,16 +18,15 @@
 from setuptools import setup, find_packages
 
 py_version = sys.version_info[:2]
-is_pypy = '__pypy__' in sys.builtin_module_names
 
 PY3 = py_version[0] == 3
 
 if PY3:
-    if py_version < (3, 3) and not is_pypy: # PyPy3 masquerades as Python 3.2...
-        raise RuntimeError('On Python 3, Pyramid requires Python 3.3 or better')
+    if py_version < (3, 4):
+        raise RuntimeError('On Python 3, Pyramid requires Python 3.4 or better')
 else:
-    if py_version < (2, 6):
-        raise RuntimeError('On Python 2, Pyramid requires Python 2.6 or better')
+    if py_version < (2, 7):
+        raise RuntimeError('On Python 2, Pyramid requires Python 2.7 or better')
 
 here = os.path.abspath(os.path.dirname(__file__))
 try:
@@ -81,7 +80,6 @@
           "Programming Language :: Python",
           "Programming Language :: Python :: 2.7",
           "Programming Language :: Python :: 3",
-          "Programming Language :: Python :: 3.3",
           "Programming Language :: Python :: 3.4",
           "Programming Language :: Python :: 3.5",
           "Programming Language :: Python :: Implementation :: CPython",

{"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -18,16 +18,15 @@\n from setuptools import setup, find_packages\n \n py_version = sys.version_info[:2]\n-is_pypy = '__pypy__' in sys.builtin_module_names\n \n PY3 = py_version[0] == 3\n \n if PY3:\n-    if py_version < (3, 3) and not is_pypy: # PyPy3 masquerades as Python 3.2...\n-        raise RuntimeError('On Python 3, Pyramid requires Python 3.3 or better')\n+    if py_version < (3, 4):\n+        raise RuntimeError('On Python 3, Pyramid requires Python 3.4 or better')\n else:\n-    if py_version < (2, 6):\n-        raise RuntimeError('On Python 2, Pyramid requires Python 2.6 or better')\n+    if py_version < (2, 7):\n+        raise RuntimeError('On Python 2, Pyramid requires Python 2.7 or better')\n \n here = os.path.abspath(os.path.dirname(__file__))\n try:\n@@ -81,7 +80,6 @@\n           \"Programming Language :: Python\",\n           \"Programming Language :: Python :: 2.7\",\n           \"Programming Language :: Python :: 3\",\n-          \"Programming Language :: Python :: 3.3\",\n           \"Programming Language :: Python :: 3.4\",\n           \"Programming Language :: Python :: 3.5\",\n           \"Programming Language :: Python :: Implementation :: CPython\",\n", "issue": "Drop Python 3.3 support\nThis is a placeholder for Pyramid 1.8 to drop Python 3.3 support.\n\nCreating a new issue, splitting it off from https://github.com/Pylons/pyramid/issues/2368.\n\n", "before_files": [{"content": "##############################################################################\n#\n# Copyright (c) 2008-2013 Agendaless Consulting and Contributors.\n# All Rights Reserved.\n#\n# This software is subject to the provisions of the BSD-like license at\n# http://www.repoze.org/LICENSE.txt.  A copy of the license should accompany\n# this distribution.  THIS SOFTWARE IS PROVIDED \"AS IS\" AND ANY AND ALL\n# EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO,\n# THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND\n# FITNESS FOR A PARTICULAR PURPOSE\n#\n##############################################################################\n\nimport os\nimport sys\n\nfrom setuptools import setup, find_packages\n\npy_version = sys.version_info[:2]\nis_pypy = '__pypy__' in sys.builtin_module_names\n\nPY3 = py_version[0] == 3\n\nif PY3:\n    if py_version < (3, 3) and not is_pypy: # PyPy3 masquerades as Python 3.2...\n        raise RuntimeError('On Python 3, Pyramid requires Python 3.3 or better')\nelse:\n    if py_version < (2, 6):\n        raise RuntimeError('On Python 2, Pyramid requires Python 2.6 or better')\n\nhere = os.path.abspath(os.path.dirname(__file__))\ntry:\n    with open(os.path.join(here, 'README.rst')) as f:\n        README = f.read()\n    with open(os.path.join(here, 'CHANGES.txt')) as f:\n        CHANGES = f.read()\nexcept IOError:\n    README = CHANGES = ''\n\ninstall_requires = [\n    'setuptools',\n    'WebOb >= 1.3.1', # request.domain and CookieProfile\n    'repoze.lru >= 0.4', # py3 compat\n    'zope.interface >= 3.8.0',  # has zope.interface.registry\n    'zope.deprecation >= 3.5.0', # py3 compat\n    'venusian >= 1.0a3', # ``ignore``\n    'translationstring >= 0.4', # py3 compat\n    'PasteDeploy >= 1.5.0', # py3 compat\n    ]\n\ntests_require = [\n    'WebTest >= 1.3.1', # py3 compat\n    ]\n\nif not PY3:\n    tests_require.append('zope.component>=3.11.0')\n\ndocs_extras = [\n    'Sphinx >= 1.3.5',\n    'docutils',\n    'repoze.sphinx.autointerface',\n    'pylons_sphinx_latesturl',\n    'pylons-sphinx-themes',\n    'sphinxcontrib-programoutput',\n    ]\n\ntesting_extras = tests_require + [\n    'nose',\n    'coverage',\n    'virtualenv', # for scaffolding tests\n    ]\n\nsetup(name='pyramid',\n      version='1.8.dev0',\n      description='The Pyramid Web Framework, a Pylons project',\n      long_description=README + '\\n\\n' + CHANGES,\n      classifiers=[\n          \"Development Status :: 6 - Mature\",\n          \"Intended Audience :: Developers\",\n          \"Programming Language :: Python\",\n          \"Programming Language :: Python :: 2.7\",\n          \"Programming Language :: Python :: 3\",\n          \"Programming Language :: Python :: 3.3\",\n          \"Programming Language :: Python :: 3.4\",\n          \"Programming Language :: Python :: 3.5\",\n          \"Programming Language :: Python :: Implementation :: CPython\",\n          \"Programming Language :: Python :: Implementation :: PyPy\",\n          \"Framework :: Pyramid\",\n          \"Topic :: Internet :: WWW/HTTP\",\n          \"Topic :: Internet :: WWW/HTTP :: WSGI\",\n          \"License :: Repoze Public License\",\n      ],\n      keywords='web wsgi pylons pyramid',\n      author=\"Chris McDonough, Agendaless Consulting\",\n      author_email=\"pylons-discuss@googlegroups.com\",\n      url=\"https://trypyramid.com\",\n      license=\"BSD-derived (http://www.repoze.org/LICENSE.txt)\",\n      packages=find_packages(),\n      include_package_data=True,\n      zip_safe=False,\n      install_requires=install_requires,\n      extras_require={\n          'testing': testing_extras,\n          'docs': docs_extras,\n          },\n      tests_require=tests_require,\n      test_suite=\"pyramid.tests\",\n      entry_points=\"\"\"\\\n        [pyramid.scaffold]\n        starter=pyramid.scaffolds:StarterProjectTemplate\n        zodb=pyramid.scaffolds:ZODBProjectTemplate\n        alchemy=pyramid.scaffolds:AlchemyProjectTemplate\n        [pyramid.pshell_runner]\n        python=pyramid.scripts.pshell:python_shell_runner\n        [console_scripts]\n        pcreate = pyramid.scripts.pcreate:main\n        pserve = pyramid.scripts.pserve:main\n        pshell = pyramid.scripts.pshell:main\n        proutes = pyramid.scripts.proutes:main\n        pviews = pyramid.scripts.pviews:main\n        ptweens = pyramid.scripts.ptweens:main\n        prequest = pyramid.scripts.prequest:main\n        pdistreport = pyramid.scripts.pdistreport:main\n        [paste.server_runner]\n        wsgiref = pyramid.scripts.pserve:wsgiref_server_runner\n        cherrypy = pyramid.scripts.pserve:cherrypy_server_runner\n      \"\"\"\n      )\n", "path": "setup.py"}], "after_files": [{"content": "##############################################################################\n#\n# Copyright (c) 2008-2013 Agendaless Consulting and Contributors.\n# All Rights Reserved.\n#\n# This software is subject to the provisions of the BSD-like license at\n# http://www.repoze.org/LICENSE.txt.  A copy of the license should accompany\n# this distribution.  THIS SOFTWARE IS PROVIDED \"AS IS\" AND ANY AND ALL\n# EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO,\n# THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND\n# FITNESS FOR A PARTICULAR PURPOSE\n#\n##############################################################################\n\nimport os\nimport sys\n\nfrom setuptools import setup, find_packages\n\npy_version = sys.version_info[:2]\n\nPY3 = py_version[0] == 3\n\nif PY3:\n    if py_version < (3, 4):\n        raise RuntimeError('On Python 3, Pyramid requires Python 3.4 or better')\nelse:\n    if py_version < (2, 7):\n        raise RuntimeError('On Python 2, Pyramid requires Python 2.7 or better')\n\nhere = os.path.abspath(os.path.dirname(__file__))\ntry:\n    with open(os.path.join(here, 'README.rst')) as f:\n        README = f.read()\n    with open(os.path.join(here, 'CHANGES.txt')) as f:\n        CHANGES = f.read()\nexcept IOError:\n    README = CHANGES = ''\n\ninstall_requires = [\n    'setuptools',\n    'WebOb >= 1.3.1', # request.domain and CookieProfile\n    'repoze.lru >= 0.4', # py3 compat\n    'zope.interface >= 3.8.0',  # has zope.interface.registry\n    'zope.deprecation >= 3.5.0', # py3 compat\n    'venusian >= 1.0a3', # ``ignore``\n    'translationstring >= 0.4', # py3 compat\n    'PasteDeploy >= 1.5.0', # py3 compat\n    ]\n\ntests_require = [\n    'WebTest >= 1.3.1', # py3 compat\n    ]\n\nif not PY3:\n    tests_require.append('zope.component>=3.11.0')\n\ndocs_extras = [\n    'Sphinx >= 1.3.5',\n    'docutils',\n    'repoze.sphinx.autointerface',\n    'pylons_sphinx_latesturl',\n    'pylons-sphinx-themes',\n    'sphinxcontrib-programoutput',\n    ]\n\ntesting_extras = tests_require + [\n    'nose',\n    'coverage',\n    'virtualenv', # for scaffolding tests\n    ]\n\nsetup(name='pyramid',\n      version='1.8.dev0',\n      description='The Pyramid Web Framework, a Pylons project',\n      long_description=README + '\\n\\n' + CHANGES,\n      classifiers=[\n          \"Development Status :: 6 - Mature\",\n          \"Intended Audience :: Developers\",\n          \"Programming Language :: Python\",\n          \"Programming Language :: Python :: 2.7\",\n          \"Programming Language :: Python :: 3\",\n          \"Programming Language :: Python :: 3.4\",\n          \"Programming Language :: Python :: 3.5\",\n          \"Programming Language :: Python :: Implementation :: CPython\",\n          \"Programming Language :: Python :: Implementation :: PyPy\",\n          \"Framework :: Pyramid\",\n          \"Topic :: Internet :: WWW/HTTP\",\n          \"Topic :: Internet :: WWW/HTTP :: WSGI\",\n          \"License :: Repoze Public License\",\n      ],\n      keywords='web wsgi pylons pyramid',\n      author=\"Chris McDonough, Agendaless Consulting\",\n      author_email=\"pylons-discuss@googlegroups.com\",\n      url=\"https://trypyramid.com\",\n      license=\"BSD-derived (http://www.repoze.org/LICENSE.txt)\",\n      packages=find_packages(),\n      include_package_data=True,\n      zip_safe=False,\n      install_requires=install_requires,\n      extras_require={\n          'testing': testing_extras,\n          'docs': docs_extras,\n          },\n      tests_require=tests_require,\n      test_suite=\"pyramid.tests\",\n      entry_points=\"\"\"\\\n        [pyramid.scaffold]\n        starter=pyramid.scaffolds:StarterProjectTemplate\n        zodb=pyramid.scaffolds:ZODBProjectTemplate\n        alchemy=pyramid.scaffolds:AlchemyProjectTemplate\n        [pyramid.pshell_runner]\n        python=pyramid.scripts.pshell:python_shell_runner\n        [console_scripts]\n        pcreate = pyramid.scripts.pcreate:main\n        pserve = pyramid.scripts.pserve:main\n        pshell = pyramid.scripts.pshell:main\n        proutes = pyramid.scripts.proutes:main\n        pviews = pyramid.scripts.pviews:main\n        ptweens = pyramid.scripts.ptweens:main\n        prequest = pyramid.scripts.prequest:main\n        pdistreport = pyramid.scripts.pdistreport:main\n        [paste.server_runner]\n        wsgiref = pyramid.scripts.pserve:wsgiref_server_runner\n        cherrypy = pyramid.scripts.pserve:cherrypy_server_runner\n      \"\"\"\n      )\n", "path": "setup.py"}]}