pip-accel private

====================================================================== ERROR: test_environment_validation (pip_accel.tests.PipAccelTestCase) ---------------------------------------------------------------------- Traceback (most recent call last): File "c:\projects\pip-accel\pip_accel\tests.py", line 150, in test_environment_validation os.environ['VIRTUAL_ENV'] = original_value File "C:\Python27\lib\os.py", line 422, in __setitem__ putenv(key, item) TypeError: must be string, not None ====================================================================== https://ci.appveyor.com/project/xolox/pip-accel/build/1.0.14#L185