Define __str__ for PackageVersion

Author: matyasselmeci

osgtest/library/core.py

@@ -92,6 +92,8 @@ def __init__(self, pkgname):
     def __repr__(self):
         return "%s:%s-%s" % self.evr
 
+    __str__ = __repr__
+
     def __cmp__(self, evr):
         if isinstance(evr, str):
             evr = stringToVersion(evr)