fix issue221 - handle importing of namespace-package with no

__init__.py properly. (This is a commit after the fix -- the
original issue steps for failure cannot be reproduced anymore).

CHANGELOG

@@ -56,6 +56,9 @@ Unreleased
   although it's not needed by pytest itself atm.  Also
   fix caching.  Fixes issue376.
 
+- fix issue221 - handle importing of namespace-package with no 
+  __init__.py properly.
+
 Changes between 2.4.1 and 2.4.2
 -----------------------------------
 

extra/get_issues.py

@@ -66,7 +66,8 @@ def report(issues):
 if __name__ == "__main__":
     import argparse
     parser = argparse.ArgumentParser("process bitbucket issues")
-    parser.add_argument("--refresh", help="invalidate cache, refresh issues")
+    parser.add_argument("--refresh", action="store_true",
+                        help="invalidate cache, refresh issues")
     parser.add_argument("--cache", action="store", default="issues.json",
                         help="cache file")
     args = parser.parse_args()