old_contents: from setuptools import setup
  
  setup(name='gtkclassbuilder',
        version='0.1',
        url='https://github.com/zenhack/python-gtkclassbuilder',
        packages=['gtkclassbuilder'],
        install_requires=[
            'python-gobject>=3.16,<4.0',
        ],
        )
  
new_contents: from setuptools import setup
  
  setup(name='gtkclassbuilder',
        version='0.1',
        url='https://github.com/zenhack/python-gtkclassbuilder',
        packages=['gtkclassbuilder'],
        install_requires=[
            'pygobject>=3.16,<4.0',
        ],
        )
  
subject: Fix incorrect package name in setup.py