if the user name have anumbers it doesn't work becuase of data type

Traceback (most recent call last):
File "/home/-----/github-follow-bot/bot_follow.py", line 38, in
bot = GithubAPIBot(
^^^^^^^^^^^^^
File "/home/-----/github-follow-bot/GithubAPIBot.py", line 68, in init
self.getFollowings()
File "/home/----/github-follow-bot/GithubAPIBot.py", line 226, in getFollowings
self.followings.extend(self.getUsers(url=f"https://api.github.com/users/{username}/following"))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/----/github-follow-bot/GithubAPIBot.py", line 192, in getUsers
and not (user["login"] in self.followings)
~~~~^^^^^^^^^
TypeError: string indices must be integers, not 'str'