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[06:19:26] <glyph> am I lucky enough that someone's around to tell me what the heck is going on here? https://travis-ci.org/rackerlabs/mimic/jobs/88486237

[06:31:51] <glyph> filed: https://bitbucket.org/hpk42/tox/issues/281/force-dep-breaks-when-there-are-deps-that

[22:03:39] <zermanno> Hi, I have a package installed in the site-packages directory of a virtual environment. The package is composed of two pure python modules and one extension module (.so). If I import the package from the site-packages directory (the cwd is the 'site-packages') all works. If I import the package from elsewhere (but with the virtual environment active) the import fails as it cannot find the .so module. How is it supposed t

[22:03:40] <zermanno> o work the importation of an extension module? Does it follow the same rules as pure python modules?

[22:19:21] <ionelmc> zermanno: where exactly did you put the so?

[22:19:43] <zermanno> in the same directory as the __init__.py file

[22:19:53] <ionelmc> are you sure you're using the correct virtualenv? print sys.path to check

[22:20:11] <ionelmc> better, print sys.prefix

[22:20:45] <zermanno> ionelmc, Yes correct virtualenv. If I remove the import for the shared object, the pure modules work ok from everywhere

[22:21:31] <ionelmc> zermanno: pastebin some details

[22:21:44] <ionelmc> it's really hard to guess what's going oon

[22:21:58] <ionelmc> how are you building the so?

[22:22:05] <ionelmc> a reproducer is best

[22:22:14] <zermanno> ionelmc, I am building the so with a mix of cython and cmake

[22:23:01] <ionelmc> i'm out of my league there :)

[22:23:11] <zermanno> ionelmc, what type of details do you need?

[22:23:26] <ionelmc> minimal example that reproduces the issue

[22:23:28] <zermanno> the shared object works perfectly

[22:23:31] <zermanno> mm

[22:23:58] <zermanno> ionelmc, very difficult as it requires all the build chain for the so.

[22:24:29] <zermanno> ionelmc, I am wrong thinking that the rules for importing pure modules are the same for extension modules?

[22:24:38] <zermanno> ionelmc, like paths, ecc

[22:26:45] <ionelmc> all i know is that the module name you declare in the ext (Py_InitModule3/PyModule_Create) needs to be the full import name

[22:27:02] <ionelmc> like foo.bar if you have package foo with bar.so

[22:28:24] <zermanno> ionelmc, Where can I find documentation on how extension modules work at low-level?

[22:29:09] <ionelmc> i guess https://docs.python.org/3/extending/extending.html

[22:29:29] <ionelmc> not sure really

[22:30:00] <ionelmc> i'd go mucking around the cpython sourcecode to see whats going on, or ask on the mailing list?

[22:30:45] <ionelmc> although https://docs.python.org/3/extending/extending.html is pretty comprehensive

[22:31:21] <zermanno> ionelmc, I have been spamming the cython IRC channel and mailing list for a week and nobody knows how to dealt with modules compiled outside of setuptools

[22:31:34] <zermanno> ionelmc, I'll look at the documentation, thank you!