Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/mlb.py (Python)

Code before:
    description
    feeds(types: CMS) {
      closedCaptions
      duration
      image {
        cuts {
          width
          height
          src
        }
      }
      playbacks {
        name
        url
      }
    }
    id
    timestamp
    title
  }
}''' % display_id,
            })['data']['mediaPlayback'][0]


class MLBTVIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?mlb\.com/tv/g(?P<id>\d{6})/?.*'

    _TESTS = [{
        'url': 'https://www.mlb.com/tv/g661581/vee2eff5f-a7df-4c20-bdb4-7b926fa12638',
        'info_dict': {
            'id': '661581',
            'ext': 'mp4',
            'title': '2022-07-02 - St. Louis Cardinals @ Philadelphia Phillies',
        },
        'params': {
            'skip_download': True,
        },
    }]

    def _perform_login(self, username, password):

        access_token = self._download_json('https://ids.mlb.com/oauth2/aus1m088yK07noBfh356/v1/token', None,
                                           headers={'User-Agent': 'okhttp/3.12.1',
                                                    'Content-Type': 'application/x-www-form-urlencoded'},
                                           data=(('grant_type=password&username=%s&password=%s&scope=openid offline_access'
                                                  '&client_id=0oa3e1nutA1HLzAKG356') % (urllib.parse.quote(username), urllib.parse.quote(password)))
                                           .encode())['access_token']

        entitlement = self._download_webpage('https://media-entitlement.mlb.com/api/v3/jwt?os=Android&appname=AtBat&did=' + str(uuid.uuid4()), None,
                                             headers={'User-Agent': 'okhttp/3.12.1', 'Authorization': f'Bearer {access_token}'})


Review comment (refactor):
You forget to define `_NETRC_MATCHINE` variable
From test:
```
AssertionError: None is not true : Extractor MLBTV supports login, but is missing a _NETRC_MACHINE property
```

Code after:
                'query': '''{
  mediaPlayback(ids: "%s") {
    description
    feeds(types: CMS) {
      closedCaptions
      duration
      image {
        cuts {
          width
          height
          src
        }
      }
      playbacks {
        name
        url
      }
    }
    id
    timestamp
    title
  }
}''' % display_id,
            })['data']['mediaPlayback'][0]


class MLBTVIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?mlb\.com/tv/g(?P<id>\d{6})'
    _NETRC_MACHINE = 'mlb'

    _TESTS = [{
        'url': 'https://www.mlb.com/tv/g661581/vee2eff5f-a7df-4c20-bdb4-7b926fa12638',
        'info_dict': {
            'id': '661581',
            'ext': 'mp4',
            'title': '2022-07-02 - St. Louis Cardinals @ Philadelphia Phillies',
        },
        'params': {
            'skip_download': True,
        },
    }]
    _access_token = None

    def _real_initialize(self):
        if not self._access_token:
            self.raise_login_required(
                'All videos are only available to registered users', method='password')

    def _perform_login(self, username, password):
        data = f'grant_type=password&username={urllib.parse.quote(username)}&password={urllib.parse.quote(password)}&scope=openid offline_access&client_id=0oa3e1nutA1HLzAKG356'
        access_token = self._download_json(