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Bug 477764 - sys-apps/portage: sanitize PYTHONPATH for ebuild helpers
Summary: sys-apps/portage: sanitize PYTHONPATH for ebuild helpers
Status: RESOLVED FIXED
Alias: None
Product: Portage Development
Classification: Unclassified
Component: Core - Ebuild Support (show other bugs)
Hardware: All All
: Normal normal (vote)
Assignee: Portage team
URL:
Whiteboard:
Keywords: InVCS
Depends on:
Blocks: 472632
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Reported: 2013-07-22 16:13 UTC by Zac Medico
Modified: 2013-07-26 07:11 UTC (History)
0 users

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Description Zac Medico gentoo-dev 2013-07-22 16:13:57 UTC 
In the ebuild environment, the PYTHONPATH variable cannot be trusted, since it may can break python. For example:

  $ PYTHONPATH=/usr/lib/python2.7 python3.3
  Fatal Python error: Py_Initialize: Unable to get the locale encoding
    File "/usr/lib/python2.7/encodings/__init__.py", line 123
      raise CodecRegistryError,\
                              ^
  SyntaxError: invalid syntax
  Aborted

We can handle this by using a known-safe PORTAGE_PYTHONPATH variable to override PYTHONPATH when calling python helpers.
Comment 2 Zac Medico gentoo-dev 2013-07-26 07:11:55 UTC 
This is fixed in 2.1.13 and 2.2.0_alpha189.