Package: pypy Version: 2.2.1+dfsg-1 The PEP3147 patch to PyPy caused PyPy to create __pycache__ folders even in directories where there are no .py files to compile. This results in extra __pycache__ directories laying around. Specifically this has broken pip installs from Wheel files because it records which _files_ were installed but not directories. This bug causes a __pycache__ directory to be present in the .dist-info metadata directory which makes pip unable to install it.
You can reproduce it by simply doing:
mkdir -p foo/bar
mkdir -p foo/win
touch foo/win/PKG-INFO
touch foo/bar/a.py
pypy -c "import compileall; compileall.compile_dir('foo', force=True)"
You'll see it has the __pycache__ directory inside the foo/win directory. If
you compare this to Python3 you'll see that it does not have this directory.
You can see output here: https://gist.github.com/dstufft/9643283
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Donald Stufft
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