Make isolated environments more isolated under OSX and pyvenv. Resolves pre-commit#217.

asottile · asottile · commit cdf726bbedb1 · 2015-04-08T13:59:30.000-07:00
diff --git a/pre_commit/main.py b/pre_commit/main.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 import argparse
+import os
 import sys
 
 import pkg_resources
@@ -15,6 +16,13 @@
 from pre_commit.runner import Runner
 
 
+# https://github.com/pre-commit/pre-commit/issues/217
+# On OSX, making a virtualenv using pyvenv at . causes `virtualenv` and `pip`
+# to install packages to the wrong place.  We don't want anything to deal with
+# pyvenv
+os.environ.pop('__PYVENV_LAUNCHER__', None)
+
+
 def main(argv=None):
     argv = argv if argv is not None else sys.argv[1:]
     parser = argparse.ArgumentParser()
