[python3] make sure staticcontroller returns a bytes instance The ``publish()`` method of controller is supposed to return a bytes intsance. Returning a text_type instance will crash later on in the Pyramid response handler when assigning content to ``response.body`` (at least in Python3):: >>> from pyramid.response import Response >>> r = Response() >>> r.body = '' Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/adim/.virtualenvs/…/response.py", line 562, in _body__set raise TypeError(msg) TypeError: You cannot set Response.body to a text object (use Response.text)

[python3] use inspect.getfullargspec instead of inspect.getargspec The latter is now deprecated

[utils] Fixes compatiblity of QueryCache with expected dict interface QueryCache is expected to mimick the interface of the dict built-in. The current __iter__ implementation breaks this expectation by iterating over key, value pairs instead of only the keys. This changeset fixes this issue by changing the __iter__ implementation to iterate over the keys in the cache and providing an implementation of the items method with a contract identical to the dict build-in (return a copy of the key- value pairs within the dictionary as a list).