I experience the following issue when importing plotly on Python 3 (3.3.0 on Windows, 3.4.0 on Linux). I haven't checked whether the error occurs on Python 2

plotly/graph_objs/graph_objs.py (in 4ed359e and maybe before) at lines 42ff cause a type error in the json module's loads function:

INFO = json.loads(resource_string('plotly',
 'graph_reference/graph_objs_meta.json')
 object_pairs_hook=collections.OrderedDict)

TypeError: the JSON object must be str, not 'bytes'

Manually decoding the byte string with an added .decode('utf-8') solved my problems, but I'm not sure whether this will cause problems on Python 2 – I.e. I'm not aware of whether the return type of resource_string is different then.