We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Tests package is not correctly excluded
Currently test codes are installed to site-packages.

`setuptools.find_packages(exclude=['tests'])` needs to be fixed.

--- 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 import os
2 import setuptools
3 
4 
5 here = os.path.abspath(os.path.dirname(__file__))
6 # Get __version__ variable
7 exec(open(os.path.join(here, 'pytorch_pfn_extras', '_version.py')).read())
8 
9 
10 setuptools.setup(
11     name='pytorch-pfn-extras',
12     version=__version__,        # NOQA
13     description='Supplementary components to accelerate research and '
14                 'development in PyTorch.',
15     author='Preferred Networks, Inc.',
16     license='MIT License',
17     install_requires=['numpy', 'torch'],
18     extras_require={
19         'test': ['pytest'],
20         'onnx': ['onnx'],
21     },
22     python_requires='>=3.6.0',
23     packages=setuptools.find_packages(exclude=['tests']),
24     package_data={'pytorch_pfn_extras': ['py.typed']},
25 )
26
```
--- 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
@@ -20,6 +20,6 @@
         'onnx': ['onnx'],
     },
     python_requires='>=3.6.0',
-    packages=setuptools.find_packages(exclude=['tests']),
+    packages=setuptools.find_packages(exclude=['tests', 'tests.*']),
     package_data={'pytorch_pfn_extras': ['py.typed']},
 )

{"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -20,6 +20,6 @@\n         'onnx': ['onnx'],\n     },\n     python_requires='>=3.6.0',\n-    packages=setuptools.find_packages(exclude=['tests']),\n+    packages=setuptools.find_packages(exclude=['tests', 'tests.*']),\n     package_data={'pytorch_pfn_extras': ['py.typed']},\n )\n", "issue": "Tests package is not correctly excluded\nCurrently test codes are installed to site-packages.\r\n\r\n`setuptools.find_packages(exclude=['tests'])` needs to be fixed.\n", "before_files": [{"content": "import os\nimport setuptools\n\n\nhere = os.path.abspath(os.path.dirname(__file__))\n# Get __version__ variable\nexec(open(os.path.join(here, 'pytorch_pfn_extras', '_version.py')).read())\n\n\nsetuptools.setup(\n    name='pytorch-pfn-extras',\n    version=__version__,        # NOQA\n    description='Supplementary components to accelerate research and '\n                'development in PyTorch.',\n    author='Preferred Networks, Inc.',\n    license='MIT License',\n    install_requires=['numpy', 'torch'],\n    extras_require={\n        'test': ['pytest'],\n        'onnx': ['onnx'],\n    },\n    python_requires='>=3.6.0',\n    packages=setuptools.find_packages(exclude=['tests']),\n    package_data={'pytorch_pfn_extras': ['py.typed']},\n)\n", "path": "setup.py"}], "after_files": [{"content": "import os\nimport setuptools\n\n\nhere = os.path.abspath(os.path.dirname(__file__))\n# Get __version__ variable\nexec(open(os.path.join(here, 'pytorch_pfn_extras', '_version.py')).read())\n\n\nsetuptools.setup(\n    name='pytorch-pfn-extras',\n    version=__version__,        # NOQA\n    description='Supplementary components to accelerate research and '\n                'development in PyTorch.',\n    author='Preferred Networks, Inc.',\n    license='MIT License',\n    install_requires=['numpy', 'torch'],\n    extras_require={\n        'test': ['pytest'],\n        'onnx': ['onnx'],\n    },\n    python_requires='>=3.6.0',\n    packages=setuptools.find_packages(exclude=['tests', 'tests.*']),\n    package_data={'pytorch_pfn_extras': ['py.typed']},\n)\n", "path": "setup.py"}]}