gnu/packages/patches/python-2.7-site-prefixes.patch

   1 Add all /gnu/store/ prefixes found in PYTHONPATH to the prefixes where
   2 site-packages (and .pth files) are searched.
   3
   4 *** Python-2.7.11/Lib/site.py.orig      2016-10-17 23:27:23.746149690 +0200
   5 --- Python-2.7.11/Lib/site.py   2016-10-17 23:44:51.930871644 +0200
   6 ***************
   7 *** 65,70 ****
   8 --- 65,82 ----
   9
  10   # Prefixes for site-packages; add additional prefixes like /usr/local here
  11   PREFIXES = [sys.prefix, sys.exec_prefix]
  12 + # Guix: Add all /gnu/store-paths in PYTHONPATH--these are all
  13 + # "prefixes".  This is required to search .pth files in all python
  14 + # packages contained in /gnu/store which is required to make
  15 + # .pth-defined namespace packages work.
  16 + # This is necessary if the packages are not merged into a single
  17 + # `site-packages` directory (like when using `guix environment`) but
  18 + # listed in PYTHONPATH (like when running `guix build`).
  19 + for p in sys.path:
  20 +     if p.startswith('/gnu/store/'):
  21 +         PREFIXES.append(p[:p.find('/', 44)]) # find first pathsep after hash
  22 + del p
  23 +
  24   # Enable per user site-packages directory
  25   # set it to False to disable the feature or True to force the feature
  26   ENABLE_USER_SITE = None