We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
pytest flag --strict-markers requires version 4.5.0
pytest flag `--strict-markers` in https://github.com/rlworkgroup/garage/blob/master/setup.cfg#L79 requires version >= 4.5.0. 

See https://docs.pytest.org/en/latest/changelog.html#pytest-4-5-0-2019-05-11

--- 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 """setuptools based setup module."""
2 from setuptools import find_packages
3 from setuptools import setup
4 
5 TF_VERSION = '<1.16,>=1.15.0'
6 GYM_VERSION = '==0.12.4'
7 
8 # Required dependencies
9 REQUIRED = [
10     # Please keep alphabetized
11     'akro==0.0.6',
12     'cached_property',
13     'click',
14     'cloudpickle',
15     'cma==2.7.0',
16     'dowel==0.0.2',
17     'gym[atari,box2d,classic_control]' + GYM_VERSION,
18     'joblib<0.13,>=0.12',
19     'matplotlib',
20     'numpy>=1.14.5',
21     'psutil',
22     # Pyglet 1.4.0 introduces some api change which breaks some
23     # gym environments
24     # See: https://github.com/openai/gym/issues/1588
25     'pyglet<1.4.0,>=1.3.0',
26     'pyprind',
27     'python-dateutil',
28     'torch==1.3.0',
29     'ray',
30     'scikit-image',
31     'scipy',
32     'tensorflow' + TF_VERSION,
33     'tensorflow-probability',
34     'torchvision==0.4.1'
35 ]
36 
37 # Dependencies for optional features
38 EXTRAS = {}
39 
40 EXTRAS['mujoco'] = [
41     'mujoco-py<2.1,>=2.0',
42     'gym[all]' + GYM_VERSION,
43 ]
44 
45 EXTRAS['dm_control'] = [
46     # dm_control throws an error during install about not being able to
47     # find a build dependency (absl-py). Later pip executes the `install`
48     # command again and the install succeeds because absl-py has been
49     # installed. This is stupid, but harmless.
50     'dm_control @ https://api.github.com/repos/deepmind/dm_control/tarball/7a36377879c57777e5d5b4da5aae2cd2a29b607a',  # pylint: disable=line-too-long; # noqa: E501
51 ]
52 
53 EXTRAS['all'] = list(set(sum(EXTRAS.values(), [])))
54 
55 # dependencies for using gpu, not included in 'all'
56 EXTRAS['gpu'] = ['tensorflow-gpu' + TF_VERSION]
57 
58 # Development dependencies (*not* included in 'all')
59 EXTRAS['dev'] = [
60     # Please keep alphabetized
61     'baselines @ https://api.github.com/repos/openai/baselines/tarball/f2729693253c0ef4d4086231d36e0a4307ec1cb3',  # pylint: disable=line-too-long; # noqa: E501
62     'flake8',
63     'flake8-docstrings>=1.5.0',
64     'flake8-import-order',
65     'gtimer',
66     'pandas',
67     'pep8-naming==0.7.0',
68     'pre-commit',
69     'pycodestyle>=2.5.0',
70     'pydocstyle>=4.0.0',
71     'pylint>=2.4.3',
72     'pytest>=3.6',  # Required for pytest-cov on Python 3.6
73     'pytest-cov',
74     'pytest-xdist',
75     'recommonmark',
76     'rlkit @ git+https://github.com/vitchyr/rlkit/@1d469a509b797ca04a39b8734c1816ca7d108fc8',  # pylint: disable=line-too-long; # noqa: E501
77     'seaborn',
78     'sphinx',
79     'sphinx_rtd_theme',
80     'yapf==0.28.0',
81 ]
82 
83 with open('README.md') as f:
84     README = f.read()
85 
86 # Get the package version dynamically
87 with open('VERSION') as v:
88     VERSION = v.read().strip()
89 
90 setup(
91     name='garage',
92     version=VERSION,
93     author='Reinforcement Learning Working Group',
94     description='A toolkit for reproducible reinforcement learning research',
95     url='https://github.com/rlworkgroup/garage',
96     packages=find_packages(where='src'),
97     package_dir={'': 'src'},
98     scripts=['scripts/garage'],
99     python_requires='>=3.5',
100     install_requires=REQUIRED,
101     extras_require=EXTRAS,
102     license='MIT',
103     long_description=README,
104     long_description_content_type='text/markdown',
105     classifiers=[
106         'Development Status :: 4 - Beta',
107         'Intended Audience :: Developers',
108         'Intended Audience :: Education',
109         'Intended Audience :: Science/Research',
110         'License :: OSI Approved :: MIT License',
111         'Programming Language :: Python :: 3.5',
112         'Programming Language :: Python :: 3.6',
113         'Programming Language :: Python :: 3.7',
114         'Programming Language :: Python :: 3 :: Only',
115         'Topic :: Scientific/Engineering :: Artificial Intelligence',
116         'Topic :: Scientific/Engineering :: Mathematics',
117         'Topic :: Software Development :: Libraries',
118     ],
119 )
120
```
--- 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
@@ -69,7 +69,7 @@
     'pycodestyle>=2.5.0',
     'pydocstyle>=4.0.0',
     'pylint>=2.4.3',
-    'pytest>=3.6',  # Required for pytest-cov on Python 3.6
+    'pytest>=4.5.0',  # Required for strict-markers
     'pytest-cov',
     'pytest-xdist',
     'recommonmark',

{"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -69,7 +69,7 @@\n     'pycodestyle>=2.5.0',\n     'pydocstyle>=4.0.0',\n     'pylint>=2.4.3',\n-    'pytest>=3.6',  # Required for pytest-cov on Python 3.6\n+    'pytest>=4.5.0',  # Required for strict-markers\n     'pytest-cov',\n     'pytest-xdist',\n     'recommonmark',\n", "issue": "pytest flag --strict-markers requires version 4.5.0\npytest flag `--strict-markers` in https://github.com/rlworkgroup/garage/blob/master/setup.cfg#L79 requires version >= 4.5.0. \r\n\r\nSee https://docs.pytest.org/en/latest/changelog.html#pytest-4-5-0-2019-05-11\n", "before_files": [{"content": "\"\"\"setuptools based setup module.\"\"\"\nfrom setuptools import find_packages\nfrom setuptools import setup\n\nTF_VERSION = '<1.16,>=1.15.0'\nGYM_VERSION = '==0.12.4'\n\n# Required dependencies\nREQUIRED = [\n    # Please keep alphabetized\n    'akro==0.0.6',\n    'cached_property',\n    'click',\n    'cloudpickle',\n    'cma==2.7.0',\n    'dowel==0.0.2',\n    'gym[atari,box2d,classic_control]' + GYM_VERSION,\n    'joblib<0.13,>=0.12',\n    'matplotlib',\n    'numpy>=1.14.5',\n    'psutil',\n    # Pyglet 1.4.0 introduces some api change which breaks some\n    # gym environments\n    # See: https://github.com/openai/gym/issues/1588\n    'pyglet<1.4.0,>=1.3.0',\n    'pyprind',\n    'python-dateutil',\n    'torch==1.3.0',\n    'ray',\n    'scikit-image',\n    'scipy',\n    'tensorflow' + TF_VERSION,\n    'tensorflow-probability',\n    'torchvision==0.4.1'\n]\n\n# Dependencies for optional features\nEXTRAS = {}\n\nEXTRAS['mujoco'] = [\n    'mujoco-py<2.1,>=2.0',\n    'gym[all]' + GYM_VERSION,\n]\n\nEXTRAS['dm_control'] = [\n    # dm_control throws an error during install about not being able to\n    # find a build dependency (absl-py). Later pip executes the `install`\n    # command again and the install succeeds because absl-py has been\n    # installed. This is stupid, but harmless.\n    'dm_control @ https://api.github.com/repos/deepmind/dm_control/tarball/7a36377879c57777e5d5b4da5aae2cd2a29b607a',  # pylint: disable=line-too-long; # noqa: E501\n]\n\nEXTRAS['all'] = list(set(sum(EXTRAS.values(), [])))\n\n# dependencies for using gpu, not included in 'all'\nEXTRAS['gpu'] = ['tensorflow-gpu' + TF_VERSION]\n\n# Development dependencies (*not* included in 'all')\nEXTRAS['dev'] = [\n    # Please keep alphabetized\n    'baselines @ https://api.github.com/repos/openai/baselines/tarball/f2729693253c0ef4d4086231d36e0a4307ec1cb3',  # pylint: disable=line-too-long; # noqa: E501\n    'flake8',\n    'flake8-docstrings>=1.5.0',\n    'flake8-import-order',\n    'gtimer',\n    'pandas',\n    'pep8-naming==0.7.0',\n    'pre-commit',\n    'pycodestyle>=2.5.0',\n    'pydocstyle>=4.0.0',\n    'pylint>=2.4.3',\n    'pytest>=3.6',  # Required for pytest-cov on Python 3.6\n    'pytest-cov',\n    'pytest-xdist',\n    'recommonmark',\n    'rlkit @ git+https://github.com/vitchyr/rlkit/@1d469a509b797ca04a39b8734c1816ca7d108fc8',  # pylint: disable=line-too-long; # noqa: E501\n    'seaborn',\n    'sphinx',\n    'sphinx_rtd_theme',\n    'yapf==0.28.0',\n]\n\nwith open('README.md') as f:\n    README = f.read()\n\n# Get the package version dynamically\nwith open('VERSION') as v:\n    VERSION = v.read().strip()\n\nsetup(\n    name='garage',\n    version=VERSION,\n    author='Reinforcement Learning Working Group',\n    description='A toolkit for reproducible reinforcement learning research',\n    url='https://github.com/rlworkgroup/garage',\n    packages=find_packages(where='src'),\n    package_dir={'': 'src'},\n    scripts=['scripts/garage'],\n    python_requires='>=3.5',\n    install_requires=REQUIRED,\n    extras_require=EXTRAS,\n    license='MIT',\n    long_description=README,\n    long_description_content_type='text/markdown',\n    classifiers=[\n        'Development Status :: 4 - Beta',\n        'Intended Audience :: Developers',\n        'Intended Audience :: Education',\n        'Intended Audience :: Science/Research',\n        'License :: OSI Approved :: MIT License',\n        'Programming Language :: Python :: 3.5',\n        'Programming Language :: Python :: 3.6',\n        'Programming Language :: Python :: 3.7',\n        'Programming Language :: Python :: 3 :: Only',\n        'Topic :: Scientific/Engineering :: Artificial Intelligence',\n        'Topic :: Scientific/Engineering :: Mathematics',\n        'Topic :: Software Development :: Libraries',\n    ],\n)\n", "path": "setup.py"}], "after_files": [{"content": "\"\"\"setuptools based setup module.\"\"\"\nfrom setuptools import find_packages\nfrom setuptools import setup\n\nTF_VERSION = '<1.16,>=1.15.0'\nGYM_VERSION = '==0.12.4'\n\n# Required dependencies\nREQUIRED = [\n    # Please keep alphabetized\n    'akro==0.0.6',\n    'cached_property',\n    'click',\n    'cloudpickle',\n    'cma==2.7.0',\n    'dowel==0.0.2',\n    'gym[atari,box2d,classic_control]' + GYM_VERSION,\n    'joblib<0.13,>=0.12',\n    'matplotlib',\n    'numpy>=1.14.5',\n    'psutil',\n    # Pyglet 1.4.0 introduces some api change which breaks some\n    # gym environments\n    # See: https://github.com/openai/gym/issues/1588\n    'pyglet<1.4.0,>=1.3.0',\n    'pyprind',\n    'python-dateutil',\n    'torch==1.3.0',\n    'ray',\n    'scikit-image',\n    'scipy',\n    'tensorflow' + TF_VERSION,\n    'tensorflow-probability',\n    'torchvision==0.4.1'\n]\n\n# Dependencies for optional features\nEXTRAS = {}\n\nEXTRAS['mujoco'] = [\n    'mujoco-py<2.1,>=2.0',\n    'gym[all]' + GYM_VERSION,\n]\n\nEXTRAS['dm_control'] = [\n    # dm_control throws an error during install about not being able to\n    # find a build dependency (absl-py). Later pip executes the `install`\n    # command again and the install succeeds because absl-py has been\n    # installed. This is stupid, but harmless.\n    'dm_control @ https://api.github.com/repos/deepmind/dm_control/tarball/7a36377879c57777e5d5b4da5aae2cd2a29b607a',  # pylint: disable=line-too-long; # noqa: E501\n]\n\nEXTRAS['all'] = list(set(sum(EXTRAS.values(), [])))\n\n# dependencies for using gpu, not included in 'all'\nEXTRAS['gpu'] = ['tensorflow-gpu' + TF_VERSION]\n\n# Development dependencies (*not* included in 'all')\nEXTRAS['dev'] = [\n    # Please keep alphabetized\n    'baselines @ https://api.github.com/repos/openai/baselines/tarball/f2729693253c0ef4d4086231d36e0a4307ec1cb3',  # pylint: disable=line-too-long; # noqa: E501\n    'flake8',\n    'flake8-docstrings>=1.5.0',\n    'flake8-import-order',\n    'gtimer',\n    'pandas',\n    'pep8-naming==0.7.0',\n    'pre-commit',\n    'pycodestyle>=2.5.0',\n    'pydocstyle>=4.0.0',\n    'pylint>=2.4.3',\n    'pytest>=4.5.0',  # Required for strict-markers\n    'pytest-cov',\n    'pytest-xdist',\n    'recommonmark',\n    'rlkit @ git+https://github.com/vitchyr/rlkit/@1d469a509b797ca04a39b8734c1816ca7d108fc8',  # pylint: disable=line-too-long; # noqa: E501\n    'seaborn',\n    'sphinx',\n    'sphinx_rtd_theme',\n    'yapf==0.28.0',\n]\n\nwith open('README.md') as f:\n    README = f.read()\n\n# Get the package version dynamically\nwith open('VERSION') as v:\n    VERSION = v.read().strip()\n\nsetup(\n    name='garage',\n    version=VERSION,\n    author='Reinforcement Learning Working Group',\n    description='A toolkit for reproducible reinforcement learning research',\n    url='https://github.com/rlworkgroup/garage',\n    packages=find_packages(where='src'),\n    package_dir={'': 'src'},\n    scripts=['scripts/garage'],\n    python_requires='>=3.5',\n    install_requires=REQUIRED,\n    extras_require=EXTRAS,\n    license='MIT',\n    long_description=README,\n    long_description_content_type='text/markdown',\n    classifiers=[\n        'Development Status :: 4 - Beta',\n        'Intended Audience :: Developers',\n        'Intended Audience :: Education',\n        'Intended Audience :: Science/Research',\n        'License :: OSI Approved :: MIT License',\n        'Programming Language :: Python :: 3.5',\n        'Programming Language :: Python :: 3.6',\n        'Programming Language :: Python :: 3.7',\n        'Programming Language :: Python :: 3 :: Only',\n        'Topic :: Scientific/Engineering :: Artificial Intelligence',\n        'Topic :: Scientific/Engineering :: Mathematics',\n        'Topic :: Software Development :: Libraries',\n    ],\n)\n", "path": "setup.py"}]}