[datafeed] also catch EnvironmentError when trying to load the cwclientlib config file
means the config file has not been found, so fall back to the old implementation
instead of crashing.
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s entity's classes"""