[Python-Dev] PEP 382 update

["Martin v. Löwis"]

Guido found out that I had misunderstood the existing
pkg mechanism: If a "zope" package is imported, and
it uses pkgutil.extend_path, then it won't glob for files
ending in .pkg, but instead searches the path for
files named zope.pkg.

IOW, this is unsuitable as a foundation of PEP 382. I have
now changed the PEP to call the files .pth, more in line
with how top-level .pth files work, and added a statement
that the import feature of .pth files is not provided for
package .pth files (use __init__.py instead).

Regards,
Martin