NoneType issue when calling `_update_attributes` in `users`

[travishathaway]

Traceback:

Traceback (most recent call last):
  File "/Users/computeruser/dev/issue-metrics/issue_metrics.py", line 327, in <module>
    main()
  File "/Users/computeruser/dev/issue-metrics/issue_metrics.py", line 282, in main
    issues_with_metrics, num_issues_open, num_issues_closed = get_per_issue_metrics(
                                                              ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/computeruser/dev/issue-metrics/issue_metrics.py", line 184, in get_per_issue_metrics
    issue_with_metrics.label_metrics = get_label_metrics(issue, labels)
                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/computeruser/dev/issue-metrics/labels.py", line 45, in get_label_metrics
    label_events = get_label_events(issue, labels)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/computeruser/dev/issue-metrics/labels.py", line 26, in get_label_events
    for event in issue.issue.events():
  File "/Users/computeruser/micromamba/envs/issue-metrics/lib/python3.11/site-packages/github3/structs.py", line 131, in __iter__
    yield cls(i)
          ^^^^^^
  File "/Users/computeruser/micromamba/envs/issue-metrics/lib/python3.11/site-packages/github3/models.py", line 52, in __init__
    self._update_attributes(json)
  File "/Users/computeruser/micromamba/envs/issue-metrics/lib/python3.11/site-packages/github3/issues/event.py", line 63, in _update_attributes
    self.actor = users.ShortUser(event["actor"], self)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/computeruser/micromamba/envs/issue-metrics/lib/python3.11/site-packages/github3/models.py", line 52, in __init__
    self._update_attributes(json)
  File "/Users/computeruser/micromamba/envs/issue-metrics/lib/python3.11/site-packages/github3/users.py", line 309, in _update_attributes
    self.avatar_url = user["avatar_url"]
                      ~~~~^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not subscriptable

adding this to _update_attributes seems to have resolved this issue:

def _update_attributes(self, user):
    if user is not None:
        self.avatar_url = user["avatar_url"]
        self.events_urlt = URITemplate(user["events_url"])
        self.followers_url = user["followers_url"]
        self.following_urlt = URITemplate(user["following_url"])
        self.gists_urlt = URITemplate(user["gists_url"])
        self.gravatar_id = user["gravatar_id"]
        self.html_url = user["html_url"]
        self.id = user["id"]
        self.login = user["login"]
        self.organizations_url = user["organizations_url"]
        self.received_events_url = user["received_events_url"]
        self.repos_url = user["repos_url"]
        self.site_admin = user.get("site_admin")
        self.starred_urlt = URITemplate(user["starred_url"])
        self.subscriptions_url = user["subscriptions_url"]
        self.type = user["type"]
        self.url = self._api = user["url"]
        self._uniq = self.id

[travishathaway]

I ran across this while using this project:

• https://github.com/github/issue-metrics/

[sigmavirus24]

#1161 or something like it would fix this nicely if you're interested in sending a PR