---------------------------------------------------------------------------
JSONDecodeError                           Traceback (most recent call last)
File ~/anaconda3/envs/py39/lib/python3.9/site-packages/requests/models.py:972, in Response.json(self, **kwargs)
    971 try:
--> 972     return complexjson.loads(self.text, **kwargs)
    973 except JSONDecodeError as e:
    974     # Catch JSON-related errors and raise as requests.JSONDecodeError
    975     # This aliases json.JSONDecodeError and simplejson.JSONDecodeError

File ~/anaconda3/envs/py39/lib/python3.9/json/__init__.py:346, in loads(s, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
    343 if (cls is None and object_hook is None and
    344         parse_int is None and parse_float is None and
    345         parse_constant is None and object_pairs_hook is None and not kw):
--> 346     return _default_decoder.decode(s)
    347 if cls is None:

File ~/anaconda3/envs/py39/lib/python3.9/json/decoder.py:337, in JSONDecoder.decode(self, s, _w)
    333 """Return the Python representation of ``s`` (a ``str`` instance
    334 containing a JSON document).
    335 
    336 """
--> 337 obj, end = self.raw_decode(s, idx=_w(s, 0).end())
    338 end = _w(s, end).end()

File ~/anaconda3/envs/py39/lib/python3.9/json/decoder.py:355, in JSONDecoder.raw_decode(self, s, idx)
    354 except StopIteration as err:
--> 355     raise JSONDecodeError("Expecting value", s, err.value) from None
    356 return obj, end

JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

JSONDecodeError                           Traceback (most recent call last)
Input In [7], in <cell line: 1>()
----> 1 API = CVAT( username="gytarasov", password="Tar-2022@", url="http://cvat.rcud-rt.ru/")

File ~/anaconda3/envs/py39/lib/python3.9/site-packages/CVAT/__init__.py:37, in CVAT.__init__(self, username, password, url)
     31 body: dict = {
     32     "username": username,
     33     "password": password
     34 }
     35 response: Response = self.session.post(url=f'{self.url}/api/auth/login',
     36                                        json=body)
---> 37 self.session.headers = {"Authorization": f'Token {response.json()["key"]}'}
     38 if response.status_code != 200:
     39     raise ValueError("Bad credentials")

File ~/anaconda3/envs/py39/lib/python3.9/site-packages/requests/models.py:976, in Response.json(self, **kwargs)
    972     return complexjson.loads(self.text, **kwargs)
    973 except JSONDecodeError as e:
    974     # Catch JSON-related errors and raise as requests.JSONDecodeError
    975     # This aliases json.JSONDecodeError and simplejson.JSONDecodeError
--> 976     raise RequestsJSONDecodeError(e.msg, e.doc, e.pos)

JSONDecodeError: Expecting value: line 1 column 1 (char 0)