401 bad credentials , cannot find org, error not clear

[asawarijoshi2501]

While trying to connect to my organization, I am facing the following issue :

the organization exists here , organization also has a repository.
tried passing creds thorugh files , still getting the same error , PLEASE HELP!!!
$pygrade init --org introtodevopscourse -r https://github.com/IntroToDevopsCourse/devopsproject -s students.tsv -u <username_in_plain_text> -p <password_in_plain_text>

missing github_repo for OrderedDict([('Student ID=765552', 'Name=test student 1')])
 missing github_repo for OrderedDict([('Student ID=765552', 'github_id=asawari44')])
 missing github_repo for OrderedDict([('Student ID=765552', 'github_repo=https://github.com/asawarijoshi2501/asawari44')])
>>> cannot find org named introtodevopscourse
401 Bad credentials
Traceback (most recent call last):
 File "/usr/local/lib/python3.6/dist-packages/pygrade/init.py", line 84, in create_repos_and_teams
   org = [o for o in github.me().organizations() if os.path.basename(o.url) == org_name][0]
 File "/usr/local/lib/python3.6/dist-packages/github3/decorators.py", line 31, in auth_wrapper
   return func(self, *args, **kwargs)
 File "/usr/local/lib/python3.6/dist-packages/github3/github.py", line 1468, in me
   json = self._json(self._get(url), 200)
 File "/usr/local/lib/python3.6/dist-packages/github3/models.py", line 156, in _json
   raise exceptions.error_for(response)
github3.exceptions.AuthenticationFailed: 401 Bad credentials