easy_install (via bdist_egg) adds __init__.py to PEP 420 namespace packages

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Originally reported by: wyatt (Bitbucket: wyatt, GitHub: wyatt)

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https://bitbucket.org/pypa/setuptools/src/13a839bd8ad27a17543878068b996991357264d2/setuptools/command/bdist_egg.py?at=default#cl-273

This makes other packages in the namespace unimportable.

Proposed solutions:

• Don't add a missing __init__.py under any circumstances
• Or, if that's not feasible, don't add an __init__.py on Python 3.3+

It seems to me that the installer shouldn't be adding files to an installed package in any case. Is there a reason it does this?

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• Bitbucket: https://bitbucket.org/pypa/setuptools/issue/148

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Original comment by wyatt (Bitbucket: wyatt, GitHub: wyatt):

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For now I'm using the following workaround:

#!python
from setuptools.command.bdist_egg import bdist_egg as _bdist_egg

class bdist_egg(_bdist_egg):

    def make_init_files(self):
        return []

setup(
    ...
    cmdclass={
        'bdist_egg': bdist_egg,
    }
)

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Original comment by wyatt (Bitbucket: wyatt, GitHub: wyatt):

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In answer to my own question, the reason is to support packages that use an ad hoc sort of namespacing scheme (see commit 28901ba). Does that use case still need to supported?

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Thanks for highlighting this issue and doing the investigation.

I don't believe that kluge should be supported any longer, particularly because it now comes into conflict with PEP-420 packages. It'll require a backward-incompatible release, but let's back out that support.

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Merge backout of namespace package init module generation; ref #148.

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Backed out changeset 28901bac2f2e See #148