[Python-Dev] path joining on Windows and imp.cache_from_source()

"Martin v. Löwis" martin at v.loewis.de
Sun Apr 22 07:45:27 CEST 2012

> Now that we can reuse os.path.join() (directly for source_from_cache(),
> indirectly through easy algorithmic copying in cache_from_source()) do
> we want to keep the "special" semantics, or can I change it to match
> what ntpath would do when there can be more than one path separator on
> an OS (i.e. not do anything special)?

This goes back to


where Antoine points out that the code needs to look for altsep.

He then suggests "keep the right-most of both". I don't think he
literally meant that the right-most separator should then also be
used to separate __pycache__, but only that the right-most of
either SEP or ALTSEP is what separates the module name.

In any case, Barry apparently took this comment to mean that the
rightmost separator should be preserved.

So I don't think this is an important feature.


More information about the Python-Dev mailing list