need help with wks-keys

[ahmedani]

Traceback (most recent call last):
File "D:\wks-keys\keys.py", line 32, in <module>
pssh = get_pssh(MDP_URL)
File "D:\wks-keys\pywidevine\L3\getPSSH.py", line 10, in get_pssh
if video_tracks['@mimeType'] == 'video/mp4':
KeyError: '@mimeType'

[T33V33]

It's telling you what the error is.... getPSSH.py is looking in the manifest for '@mimeType' and failing to find it.