skipping a tets if in virtualenv

--HG--
branch : distribute
extra : rebase_source : c0928a6dc8eaa695a8abedd25c9defb0561145a3

setuptools/tests/test_develop.py

@@ -43,7 +43,7 @@ class TestDevelopTest(unittest.TestCase):
             site.USER_SITE = self.old_site
 
     def test_develop(self):
-        if sys.version < "2.6":
+        if sys.version < "2.6" or hasattr(sys, 'real_prefix'):
             return
         dist = Distribution()
         dist.script_name = 'setup.py'