[Distutils] Installing namespace packages with pip inserts strange modules into sys.modules

[Eric V. Smith]

[Oops, replying to the list this time. Sorry for the dupe, Thomas.]

On 9/12/2014 3:14 PM, Thomas Heller wrote:
> So it seems that it is a bug in setuptools:  It must not create or
> install these pth files when installing in Python 3.3 or newer (which
> implement PEP 420).

PEP 420 goes out of its way to support pkgutil.extend_path():
http://legacy.python.org/dev/peps/pep-0420/#migrating-from-legacy-namespace-packages

So it should be possible for some cross-version code to work.

-- Eric.