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Tue Feb 3 07:10:54 CET 2015 · https://mail.python.org/pipermail/python-dev/2015-February/138030.html

On Mon, Feb 2, 2015 at 12:36 PM, Cyd Haselton <chaselton at gmail.com> wrote:
> After fixing a segfault issue (many thanks Ryan) I'm back to the same issue
> I was having with Python 2.7.8; the newly built python throws an undefined
> reference to dlopen when running setup.py...specifically when importing
> just-built extensions
>
> I've managed to narrow the problem down to the following line:
>
> importlib._bootstrap._SpecMethods(spec).load()

That call is where modules are created (and executed) via the loader
designated for the module by the import machinery.  So a problem here
may simply reflect a problem with the loader.  Which module is being
imported when you run into trouble?  Is it a C-extension module?

Also keep in mind that basically everything in importlib._bootstrap is
frozen into your Python binary when you build Python (or should be).
So if you are seeing any errors related to something missing or broken
in importlib._bootstrap, it could be related to the build step where
importlib gets frozen.

Either way, more info (e.g. a traceback) would be great if you need more help.

-eric

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[Python-Dev] Import Fails in setup.py On Android