Current offenders as of 61232de

• datastore.key.Key.parent
• storage.acl.ACL.save
• storage.bucket.Bucket.new_key (Py3k related,
  though we could remove basestring from globals)
• storage.connection.Connection.new_bucket (Py3k related,
  though we could remove basestring from globals)
• storage.connection.Connection.generate_signed_url
• storage.iterator.Iterator.get_items_from_response
• storage.key.Key.generate_signed_url
• storage.key.Key.get_contents_to_file

The harmless bunch are __repr__ though they would be easy to test.

• datastore.entity.Entity.__repr__
• datastore.key.Key.__repr__
• storage.acl.ACL.Entity.__repr__
• storage.bucket.Bucket.__repr__
• storage.key.Key.__repr__