prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  [RFC] Drop Python 3.6 support in v10
  We are now discussing to drop support for Python 3.6 in CuPy v10. Feel free to leave a comment here if you have any concerns.
  
  Background:
  * CUDA Python is unlikely to provide a wheel for Python 3.6, although it can be built from the source without any issue. CUDA Python currently requires [`-std=c++14`](https://github.com/NVIDIA/cuda-python/blob/427c597959e6fe1409195a30d42fc4a1886bc89a/setup.py#L38) so recent versions of gcc, which is not in RHEL/CentOS 7 by default, is needed. We want to avoid requiring CuPy wheel users to manually install non-default GCC.
  * NumPy dropped Python 3.6 support in June 2020: https://numpy.org/neps/nep-0029-deprecation_policy.html
  * Python 3.6 support become EOL in December 2021.
  
  --- 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 #!/usr/bin/env python
  2 
  3 import glob
  4 import os
  5 from setuptools import setup, find_packages
  6 import sys
  7 
  8 source_root = os.path.abspath(os.path.dirname(__file__))
  9 sys.path.append(os.path.join(source_root, 'install'))
  10 
  11 import cupy_builder  # NOQA
  12 from cupy_builder import cupy_setup_build  # NOQA
  13 
  14 ctx = cupy_builder.Context(source_root)
  15 cupy_builder.initialize(ctx)
  16 if not cupy_builder.preflight_check(ctx):
  17     sys.exit(1)
  18 
  19 
  20 # TODO(kmaehashi): migrate to pyproject.toml (see #4727, #4619)
  21 setup_requires = [
  22     'Cython>=0.29.22,<3',
  23     'fastrlock>=0.5',
  24 ]
  25 install_requires = [
  26     'numpy>=1.17,<1.24',  # see #4773
  27     'fastrlock>=0.5',
  28 ]
  29 extras_require = {
  30     'all': [
  31         'scipy>=1.4,<1.10',  # see #4773
  32         'Cython>=0.29.22,<3',
  33         'optuna>=2.0',
  34     ],
  35     'stylecheck': [
  36         'autopep8==1.5.5',
  37         'flake8==3.8.4',
  38         'pbr==5.5.1',
  39         'pycodestyle==2.6.0',
  40     ],
  41     'test': [
  42         # 4.2 <= pytest < 6.2 is slow collecting tests and times out on CI.
  43         'pytest>=6.2',
  44     ],
  45     # TODO(kmaehashi): Remove 'jenkins' requirements.
  46     'jenkins': [
  47         'pytest>=6.2',
  48         'pytest-timeout',
  49         'pytest-cov',
  50         'coveralls',
  51         'codecov',
  52         'coverage<5',  # Otherwise, Python must be built with sqlite
  53     ],
  54 }
  55 tests_require = extras_require['test']
  56 
  57 
  58 # List of files that needs to be in the distribution (sdist/wheel).
  59 # Notes:
  60 # - Files only needed in sdist should be added to `MANIFEST.in`.
  61 # - The following glob (`**`) ignores items starting with `.`.
  62 cupy_package_data = [
  63     'cupy/cuda/cupy_thrust.cu',
  64     'cupy/cuda/cupy_cub.cu',
  65     'cupy/cuda/cupy_cufftXt.cu',  # for cuFFT callback
  66     'cupy/cuda/cupy_cufftXt.h',  # for cuFFT callback
  67     'cupy/cuda/cupy_cufft.h',  # for cuFFT callback
  68     'cupy/cuda/cufft.pxd',  # for cuFFT callback
  69     'cupy/cuda/cufft.pyx',  # for cuFFT callback
  70     'cupy/random/cupy_distributions.cu',
  71     'cupy/random/cupy_distributions.cuh',
  72 ] + [
  73     x for x in glob.glob('cupy/_core/include/cupy/**', recursive=True)
  74     if os.path.isfile(x)
  75 ]
  76 
  77 package_data = {
  78     'cupy': [
  79         os.path.relpath(x, 'cupy') for x in cupy_package_data
  80     ],
  81 }
  82 
  83 package_data['cupy'] += cupy_setup_build.prepare_wheel_libs(ctx)
  84 
  85 ext_modules = cupy_setup_build.get_ext_modules(False, ctx)
  86 build_ext = cupy_setup_build.custom_build_ext
  87 
  88 # Get __version__ variable
  89 with open(os.path.join(source_root, 'cupy', '_version.py')) as f:
  90     exec(f.read())
  91 
  92 long_description = None
  93 if ctx.long_description_path is not None:
  94     with open(ctx.long_description_path) as f:
  95         long_description = f.read()
  96 
  97 
  98 CLASSIFIERS = """\
  99 Development Status :: 5 - Production/Stable
  100 Intended Audience :: Science/Research
  101 Intended Audience :: Developers
  102 License :: OSI Approved :: MIT License
  103 Programming Language :: Python
  104 Programming Language :: Python :: 3
  105 Programming Language :: Python :: 3.6
  106 Programming Language :: Python :: 3.7
  107 Programming Language :: Python :: 3.8
  108 Programming Language :: Python :: 3.9
  109 Programming Language :: Python :: 3 :: Only
  110 Programming Language :: Cython
  111 Topic :: Software Development
  112 Topic :: Scientific/Engineering
  113 Operating System :: POSIX
  114 Operating System :: Microsoft :: Windows
  115 """
  116 
  117 
  118 setup(
  119     name=ctx.package_name,
  120     version=__version__,  # NOQA
  121     description='CuPy: NumPy & SciPy for GPU',
  122     long_description=long_description,
  123     author='Seiya Tokui',
  124     author_email='tokui@preferred.jp',
  125     maintainer='CuPy Developers',
  126     url='https://cupy.dev/',
  127     license='MIT License',
  128     project_urls={
  129         "Bug Tracker": "https://github.com/cupy/cupy/issues",
  130         "Documentation": "https://docs.cupy.dev/",
  131         "Source Code": "https://github.com/cupy/cupy",
  132     },
  133     classifiers=[_f for _f in CLASSIFIERS.split('\n') if _f],
  134     packages=find_packages(exclude=['install', 'tests']),
  135     package_data=package_data,
  136     zip_safe=False,
  137     python_requires='>=3.6.0',
  138     setup_requires=setup_requires,
  139     install_requires=install_requires,
  140     tests_require=tests_require,
  141     extras_require=extras_require,
  142     ext_modules=ext_modules,
  143     cmdclass={'build_ext': build_ext},
  144 )
  145
  ```
  --- 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()
  
  ```
  
golden_diff: diff --git a/setup.py b/setup.py
  --- a/setup.py
  +++ b/setup.py
  @@ -102,7 +102,6 @@
   License :: OSI Approved :: MIT License
   Programming Language :: Python
   Programming Language :: Python :: 3
  -Programming Language :: Python :: 3.6
   Programming Language :: Python :: 3.7
   Programming Language :: Python :: 3.8
   Programming Language :: Python :: 3.9
  @@ -134,7 +133,7 @@
       packages=find_packages(exclude=['install', 'tests']),
       package_data=package_data,
       zip_safe=False,
  -    python_requires='>=3.6.0',
  +    python_requires='>=3.7',
       setup_requires=setup_requires,
       install_requires=install_requires,
       tests_require=tests_require,
  
verification_info: {"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -102,7 +102,6 @@\n License :: OSI Approved :: MIT License\n Programming Language :: Python\n Programming Language :: Python :: 3\n-Programming Language :: Python :: 3.6\n Programming Language :: Python :: 3.7\n Programming Language :: Python :: 3.8\n Programming Language :: Python :: 3.9\n@@ -134,7 +133,7 @@\n     packages=find_packages(exclude=['install', 'tests']),\n     package_data=package_data,\n     zip_safe=False,\n-    python_requires='>=3.6.0',\n+    python_requires='>=3.7',\n     setup_requires=setup_requires,\n     install_requires=install_requires,\n     tests_require=tests_require,\n", "issue": "[RFC] Drop Python 3.6 support in v10\nWe are now discussing to drop support for Python 3.6 in CuPy v10. Feel free to leave a comment here if you have any concerns.\r\n\r\nBackground:\r\n* CUDA Python is unlikely to provide a wheel for Python 3.6, although it can be built from the source without any issue. CUDA Python currently requires [`-std=c++14`](https://github.com/NVIDIA/cuda-python/blob/427c597959e6fe1409195a30d42fc4a1886bc89a/setup.py#L38) so recent versions of gcc, which is not in RHEL/CentOS 7 by default, is needed. We want to avoid requiring CuPy wheel users to manually install non-default GCC.\r\n* NumPy dropped Python 3.6 support in June 2020: https://numpy.org/neps/nep-0029-deprecation_policy.html\r\n* Python 3.6 support become EOL in December 2021.\n", "before_files": [{"content": "#!/usr/bin/env python\n\nimport glob\nimport os\nfrom setuptools import setup, find_packages\nimport sys\n\nsource_root = os.path.abspath(os.path.dirname(__file__))\nsys.path.append(os.path.join(source_root, 'install'))\n\nimport cupy_builder  # NOQA\nfrom cupy_builder import cupy_setup_build  # NOQA\n\nctx = cupy_builder.Context(source_root)\ncupy_builder.initialize(ctx)\nif not cupy_builder.preflight_check(ctx):\n    sys.exit(1)\n\n\n# TODO(kmaehashi): migrate to pyproject.toml (see #4727, #4619)\nsetup_requires = [\n    'Cython>=0.29.22,<3',\n    'fastrlock>=0.5',\n]\ninstall_requires = [\n    'numpy>=1.17,<1.24',  # see #4773\n    'fastrlock>=0.5',\n]\nextras_require = {\n    'all': [\n        'scipy>=1.4,<1.10',  # see #4773\n        'Cython>=0.29.22,<3',\n        'optuna>=2.0',\n    ],\n    'stylecheck': [\n        'autopep8==1.5.5',\n        'flake8==3.8.4',\n        'pbr==5.5.1',\n        'pycodestyle==2.6.0',\n    ],\n    'test': [\n        # 4.2 <= pytest < 6.2 is slow collecting tests and times out on CI.\n        'pytest>=6.2',\n    ],\n    # TODO(kmaehashi): Remove 'jenkins' requirements.\n    'jenkins': [\n        'pytest>=6.2',\n        'pytest-timeout',\n        'pytest-cov',\n        'coveralls',\n        'codecov',\n        'coverage<5',  # Otherwise, Python must be built with sqlite\n    ],\n}\ntests_require = extras_require['test']\n\n\n# List of files that needs to be in the distribution (sdist/wheel).\n# Notes:\n# - Files only needed in sdist should be added to `MANIFEST.in`.\n# - The following glob (`**`) ignores items starting with `.`.\ncupy_package_data = [\n    'cupy/cuda/cupy_thrust.cu',\n    'cupy/cuda/cupy_cub.cu',\n    'cupy/cuda/cupy_cufftXt.cu',  # for cuFFT callback\n    'cupy/cuda/cupy_cufftXt.h',  # for cuFFT callback\n    'cupy/cuda/cupy_cufft.h',  # for cuFFT callback\n    'cupy/cuda/cufft.pxd',  # for cuFFT callback\n    'cupy/cuda/cufft.pyx',  # for cuFFT callback\n    'cupy/random/cupy_distributions.cu',\n    'cupy/random/cupy_distributions.cuh',\n] + [\n    x for x in glob.glob('cupy/_core/include/cupy/**', recursive=True)\n    if os.path.isfile(x)\n]\n\npackage_data = {\n    'cupy': [\n        os.path.relpath(x, 'cupy') for x in cupy_package_data\n    ],\n}\n\npackage_data['cupy'] += cupy_setup_build.prepare_wheel_libs(ctx)\n\next_modules = cupy_setup_build.get_ext_modules(False, ctx)\nbuild_ext = cupy_setup_build.custom_build_ext\n\n# Get __version__ variable\nwith open(os.path.join(source_root, 'cupy', '_version.py')) as f:\n    exec(f.read())\n\nlong_description = None\nif ctx.long_description_path is not None:\n    with open(ctx.long_description_path) as f:\n        long_description = f.read()\n\n\nCLASSIFIERS = \"\"\"\\\nDevelopment Status :: 5 - Production/Stable\nIntended Audience :: Science/Research\nIntended Audience :: Developers\nLicense :: OSI Approved :: MIT License\nProgramming Language :: Python\nProgramming Language :: Python :: 3\nProgramming Language :: Python :: 3.6\nProgramming Language :: Python :: 3.7\nProgramming Language :: Python :: 3.8\nProgramming Language :: Python :: 3.9\nProgramming Language :: Python :: 3 :: Only\nProgramming Language :: Cython\nTopic :: Software Development\nTopic :: Scientific/Engineering\nOperating System :: POSIX\nOperating System :: Microsoft :: Windows\n\"\"\"\n\n\nsetup(\n    name=ctx.package_name,\n    version=__version__,  # NOQA\n    description='CuPy: NumPy & SciPy for GPU',\n    long_description=long_description,\n    author='Seiya Tokui',\n    author_email='tokui@preferred.jp',\n    maintainer='CuPy Developers',\n    url='https://cupy.dev/',\n    license='MIT License',\n    project_urls={\n        \"Bug Tracker\": \"https://github.com/cupy/cupy/issues\",\n        \"Documentation\": \"https://docs.cupy.dev/\",\n        \"Source Code\": \"https://github.com/cupy/cupy\",\n    },\n    classifiers=[_f for _f in CLASSIFIERS.split('\\n') if _f],\n    packages=find_packages(exclude=['install', 'tests']),\n    package_data=package_data,\n    zip_safe=False,\n    python_requires='>=3.6.0',\n    setup_requires=setup_requires,\n    install_requires=install_requires,\n    tests_require=tests_require,\n    extras_require=extras_require,\n    ext_modules=ext_modules,\n    cmdclass={'build_ext': build_ext},\n)\n", "path": "setup.py"}], "after_files": [{"content": "#!/usr/bin/env python\n\nimport glob\nimport os\nfrom setuptools import setup, find_packages\nimport sys\n\nsource_root = os.path.abspath(os.path.dirname(__file__))\nsys.path.append(os.path.join(source_root, 'install'))\n\nimport cupy_builder  # NOQA\nfrom cupy_builder import cupy_setup_build  # NOQA\n\nctx = cupy_builder.Context(source_root)\ncupy_builder.initialize(ctx)\nif not cupy_builder.preflight_check(ctx):\n    sys.exit(1)\n\n\n# TODO(kmaehashi): migrate to pyproject.toml (see #4727, #4619)\nsetup_requires = [\n    'Cython>=0.29.22,<3',\n    'fastrlock>=0.5',\n]\ninstall_requires = [\n    'numpy>=1.17,<1.24',  # see #4773\n    'fastrlock>=0.5',\n]\nextras_require = {\n    'all': [\n        'scipy>=1.4,<1.10',  # see #4773\n        'Cython>=0.29.22,<3',\n        'optuna>=2.0',\n    ],\n    'stylecheck': [\n        'autopep8==1.5.5',\n        'flake8==3.8.4',\n        'pbr==5.5.1',\n        'pycodestyle==2.6.0',\n    ],\n    'test': [\n        # 4.2 <= pytest < 6.2 is slow collecting tests and times out on CI.\n        'pytest>=6.2',\n    ],\n    # TODO(kmaehashi): Remove 'jenkins' requirements.\n    'jenkins': [\n        'pytest>=6.2',\n        'pytest-timeout',\n        'pytest-cov',\n        'coveralls',\n        'codecov',\n        'coverage<5',  # Otherwise, Python must be built with sqlite\n    ],\n}\ntests_require = extras_require['test']\n\n\n# List of files that needs to be in the distribution (sdist/wheel).\n# Notes:\n# - Files only needed in sdist should be added to `MANIFEST.in`.\n# - The following glob (`**`) ignores items starting with `.`.\ncupy_package_data = [\n    'cupy/cuda/cupy_thrust.cu',\n    'cupy/cuda/cupy_cub.cu',\n    'cupy/cuda/cupy_cufftXt.cu',  # for cuFFT callback\n    'cupy/cuda/cupy_cufftXt.h',  # for cuFFT callback\n    'cupy/cuda/cupy_cufft.h',  # for cuFFT callback\n    'cupy/cuda/cufft.pxd',  # for cuFFT callback\n    'cupy/cuda/cufft.pyx',  # for cuFFT callback\n    'cupy/random/cupy_distributions.cu',\n    'cupy/random/cupy_distributions.cuh',\n] + [\n    x for x in glob.glob('cupy/_core/include/cupy/**', recursive=True)\n    if os.path.isfile(x)\n]\n\npackage_data = {\n    'cupy': [\n        os.path.relpath(x, 'cupy') for x in cupy_package_data\n    ],\n}\n\npackage_data['cupy'] += cupy_setup_build.prepare_wheel_libs(ctx)\n\next_modules = cupy_setup_build.get_ext_modules(False, ctx)\nbuild_ext = cupy_setup_build.custom_build_ext\n\n# Get __version__ variable\nwith open(os.path.join(source_root, 'cupy', '_version.py')) as f:\n    exec(f.read())\n\nlong_description = None\nif ctx.long_description_path is not None:\n    with open(ctx.long_description_path) as f:\n        long_description = f.read()\n\n\nCLASSIFIERS = \"\"\"\\\nDevelopment Status :: 5 - Production/Stable\nIntended Audience :: Science/Research\nIntended Audience :: Developers\nLicense :: OSI Approved :: MIT License\nProgramming Language :: Python\nProgramming Language :: Python :: 3\nProgramming Language :: Python :: 3.7\nProgramming Language :: Python :: 3.8\nProgramming Language :: Python :: 3.9\nProgramming Language :: Python :: 3 :: Only\nProgramming Language :: Cython\nTopic :: Software Development\nTopic :: Scientific/Engineering\nOperating System :: POSIX\nOperating System :: Microsoft :: Windows\n\"\"\"\n\n\nsetup(\n    name=ctx.package_name,\n    version=__version__,  # NOQA\n    description='CuPy: NumPy & SciPy for GPU',\n    long_description=long_description,\n    author='Seiya Tokui',\n    author_email='tokui@preferred.jp',\n    maintainer='CuPy Developers',\n    url='https://cupy.dev/',\n    license='MIT License',\n    project_urls={\n        \"Bug Tracker\": \"https://github.com/cupy/cupy/issues\",\n        \"Documentation\": \"https://docs.cupy.dev/\",\n        \"Source Code\": \"https://github.com/cupy/cupy\",\n    },\n    classifiers=[_f for _f in CLASSIFIERS.split('\\n') if _f],\n    packages=find_packages(exclude=['install', 'tests']),\n    package_data=package_data,\n    zip_safe=False,\n    python_requires='>=3.7',\n    setup_requires=setup_requires,\n    install_requires=install_requires,\n    tests_require=tests_require,\n    extras_require=extras_require,\n    ext_modules=ext_modules,\n    cmdclass={'build_ext': build_ext},\n)\n", "path": "setup.py"}]}