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When resolving git-lfs references, json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

See original GitHub issue

We are unable to access attck.enterprise.actors, attck.enterprise.techniques, etc because the code is downloading a json file that is actually a git-lfs reference and not valid json.

It fails when parsing the output of https://github.com/swimlane/pyattck/blob/master/attck_to_nist_controls.json?raw=True.

We are using version 3.0.1.

Reproduction below:

Python 3.8.6 (default, Jan  8 2021, 15:34:15)
[Clang 12.0.0 (clang-1200.0.26.2)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from pyattck import Attck
>>> attck = Attck()
>>> attck.enterprise.actors
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/blah/lib/python3.8/site-packages/pyattck/attck.py", line 224, in enterprise
    self.__load_data()
  File "/blah/lib/python3.8/site-packages/pyattck/attck.py", line 285, in __load_data
    Attck.__ENTERPRISE_NIST_DATA_JSON = self.__datasets.get_data(
  File "/blah/lib/python3.8/site-packages/pyattck/datasets.py", line 66, in get_data
    return self.__get_json_data(
  File "/blah/lib/python3.8/site-packages/pyattck/datasets.py", line 48, in __get_json_data
    data = requests.get(url).json()
  File "/blah/lib/python3.8/site-packages/requests/models.py", line 900, in json
    return complexjson.loads(self.text, **kwargs)
  File "/blah/.pyenv/versions/3.8.6/lib/python3.8/json/__init__.py", line 357, in loads
    return _default_decoder.decode(s)
  File "/blah/.pyenv/versions/3.8.6/lib/python3.8/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/blah/.pyenv/versions/3.8.6/lib/python3.8/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)