[issue8668] Packaging: add a 'develop' command

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

Ah, higery’s code already has an answer for me: it writes *two* paths in the .pth file, one to the build dir (so that .dist-info is found) and one to the modules root (for modules, built in place).  Anyone sees a problem with that?  (For example huge sys.path.)

In this scheme, when Python modules are edited, changes are visible instantly, when C modules are edited, a call to build_ext is required, and when the metadata is edited, build_distinfo is required.  Does that sound good?

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<http://bugs.python.org/issue8668>
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