Test failures in a Debian build environment

[pytoxbot]

• Bitbucket: https://bitbucket.org/hpk42/tox/issue/118
• Originally reported by: @warsaw
• Originally created at: 2013-08-21T02:09:04.933

I'm updating the Debian unstable package to tox 1.6.0 and ran across two problems in test_venv.py. Both are due to realpath() checks and the fact that on Debian/Ubuntu, /usr/bin/python is a symlink to /usr/bin/python2.7. The fix is to be sure to .realpath() both sides of the assertion.

[pytoxbot]

Original comment by @hpk42

fix issue118: tests should check realpath() on both sides. Thanks Barry Warsaw.

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