Fix super() issue in container.py - breaks py27
Fix issue with recent commit breaking py27 code.
Fixes
@@ -546,7 +546,7 @@ class _StdinWebsocket(WebSocketBaseClient): # pragma: no cover
def __init__(self, url, payload=None, **kwargs):
self.encoding = kwargs.pop('encoding', None)
self.payload = payload
- super().__init__(url, **kwargs)
+ super(_StdinWebsocket, self).__init__(url, **kwargs)
def _smart_encode(self, msg):
if type(msg) == six.text_type and self.encoding:
