Add some clarifying comments. Remove ez_setup.py.

Signed-off-by: Dan O'Reilly <oreilldf@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/python/google/protobuf/internal/_parameterized.py b/python/google/protobuf/internal/_parameterized.py
index 6c5a2bac..3821b916 100755
--- a/python/google/protobuf/internal/_parameterized.py
+++ b/python/google/protobuf/internal/_parameterized.py
@@ -263,6 +263,8 @@ def _ModifyClass(class_object, testcases, naming_type):
       'Cannot add parameters to %s,'
       ' which already has parameterized methods.' % (class_object,))
   class_object._id_suffix = id_suffix = {}
+  # We change the size of __dict__ while we iterate over it, 
+  # which Python 3.x will complain about, so use copy().
   for name, obj in class_object.__dict__.copy().items():
     if (name.startswith(unittest.TestLoader.testMethodPrefix)
         and isinstance(obj, types.FunctionType)):