Python sysconfig._get_makefile_filename() fails inside a virtualenv

[hollaburoo]

When Python is running inside a virtualenv located in /usr/local/app/env/ sysconfig._get_makefile_filename() fails on the first call.

It incorrectly strips "/local" from the path name, trying to read it's makefile from /usr/app/

The line in question appears to be:

return os.path.join(get_path('platstdlib').replace("/usr/local","/usr",1), "config" + (sys.pydebug and "_d" or ""), "Makefile")

I am running on Ubuntu 12.04 LTS with python version 2.7.3-0ubuntu3.2

[Christian Schneider (schneider-3)]

Hi,

I'm having the same problem. I have, however, another server with the same python and ubuntu versions where I can easily install virtualenvs under /usr/local; the difference is the version of virtualenv 1.7.1.2 (good) vs. 1.10 (bad). So it seems to be an issue with virtualenv.

chris

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Christian Schneider (schneider-3)]

Did some further digging.

The actual "culprit" is the file pep425tags.py which belongs to pip. In this file there is a function "get_supported" which contains the following line "oabi = sysconfig.get_config_var('SOABI')". This in turn ends up calling "_get_makefile_filename()".

I don't have the slightest idea where this should be resolved …

chris

[hollaburoo (hollaburoo)]

Anything that calls _get_makefile_filename() fails.

If you import sysconfig and run sysconfig.get_config_vars() it will fail.

[Diep Pham (favadi)]

Noboy is working on this bug? Is there any workaround for it?