[Distutils] easy_install and packages with both egg and non-egg distributions
papa.eric at free.fr
Fri Dec 21 00:27:38 CET 2007
From the documentation, unless the --upgrade option is used (or, I
suppose, a version specifier given), easy_install is supposed to be
content with distributions already installed on sys.path or
site-packages. But is it true also when an egg distribution is available
for this same package?
My problem: I have a dependency on a package xxx which is already
installed (as a subdirectory of site-packages). If I put
"install_requires = ['xxx']" in some setup.py, the egg will be
downloaded. If I try "easy_install xxx" directly, this will force the
egg distribution, too.
I don't want the egg version because it does not work, import fails on
"zipimport.ZipImportError: can't find module 'xxx'" (yet unzipping the
egg the xxx packages is there, if anyone has an idea of what may be
Also, if I remove the installed egg to used the existing distribution of
xxx, my installed package now works well, except the script installed
via entry_points, which seem to expect an egg in any case. So I cannot
just "correct" the distribution by removing the wrong egg. The current
solution I have found is not formally declare the dependency and advise
to install xxx before...
Is this the expected behaviour? I'm using python 2.5.1, windows xp,
Thanks for any help.
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