[tkloczko@devel-g2v dropbox-sdk-python-11.30.0]$ grep -rw six dropbox/dropbox_client.py:import six dropbox/dropbox_client.py: assert isinstance(obj_result, six.string_types), \ dropbox/dropbox_client.py: if not isinstance(request_binary, (six.binary_type, type(None))): dropbox/oauth.py:import six dropbox/oauth.py:if six.PY3: dropbox/oauth.py: if six.PY2 and isinstance(target, six.text_type): dropbox/oauth.py: if isinstance(o, six.binary_type): dropbox/oauth.py: if isinstance(o, six.text_type): dropbox/oauth.py: utf8_params = {encode(k): encode(v) for k, v in six.iteritems(params)} example/updown.py:import six example/updown.py: if not isinstance(name, six.text_type): requirements.txt:six >= 1.12.0 setup.py: 'six >= 1.12.0',