Simplify setup.py in arbitrary_bytes_repo

testing/resources/arbitrary_bytes_repo/python3_hook.py

@@ -5,7 +5,7 @@ from __future__ import unicode_literals
 import sys
 
 
-def func():
+def main():
     # Intentionally write mixed encoding to the output.  This should not crash
     # pre-commit and should write bytes to the output.
     sys.stdout.buffer.write('☃'.encode('UTF-8') + '²'.encode('latin1') + b'\n')

testing/resources/arbitrary_bytes_repo/setup.py

@@ -1,11 +1,8 @@
-from setuptools import find_packages
 from setuptools import setup
 
 setup(
     name='python3_hook',
     version='0.0.0',
-    packages=find_packages('.'),
-    entry_points={
-        'console_scripts': ['python3-hook = python3_hook.main:func'],
-    },
+    py_modules=['python3_hook'],
+    entry_points={'console_scripts': ['python3-hook=python3_hook:main']},
 )