[issue15364] sysconfig confused by relative paths

[Richard Oudkerk]

New submission from Richard Oudkerk <shibturn at gmail.com>:

With unix, and a source build, sysconfig.get_config_var('srcdir') and sysconfig.get_path('include') misbehave:

  user at mint-vm ~/Repos/cpython $ cd /
  user at mint-vm / $ ~/Repos/cpython/python 
  Python 3.3.0b1 (default:671894ae19a2, Jul 16 2012, 10:43:27) 
  [GCC 4.5.2] on linux
  Type "help", "copyright", "credits" or "license" for more information.
  >>> import sysconfig
  >>> sysconfig.get_config_var('srcdir')
  '/'
  >>> sysconfig.get_path('include')
  '//Include'

The problem seems to be the else clause of

        if 'srcdir' not in _CONFIG_VARS:
            _CONFIG_VARS['srcdir'] = _PROJECT_BASE
        else:
            _CONFIG_VARS['srcdir'] = _safe_realpath(_CONFIG_VARS['srcdir'])

The else clause (in slightly modified form) was introduced in 356d0ea8ea34, and it turns a relative path into an absolute path, using the current working directory as a base.

For me, simply removing the line allows the absolute path to be calculated correctly a few lines later on.

I don't know what problem 356d0ea8ea34 was intended to fix.

----------
messages: 165581
nosy: sbt
priority: normal
severity: normal
stage: needs patch
status: open
title: sysconfig confused by relative paths
type: behavior

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15364>
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