Trying to add track numbers for mp4 files results in error

[Rishi Sriram]

Im trying to add metadata to a m4a file from spotify

This is the error im getting

I am using a virtual env and i would appreciate if anyone can tell me how to properly add track number tags

[Rishi Sriram]

Nevermind I figured it out all you had to do was to use a nested tuple like tags[u'trkn']=((track,total)),)