Merge pull request #39 from dhellmann/32-implicit-namespace-package

switch to implicit namespaces

Author: mergify[bot]

setup.cfg

@@ -24,8 +24,6 @@ zip_safe = False
 [files]
 packages =
     virtualenvwrapper
-namespace_packages =
-    virtualenvwrapper
 scripts =
     virtualenvwrapper.sh
     virtualenvwrapper_lazy.sh