use module in metadata plugin

i am trying to use fuzzywuzzy in my metadata plugin, but as soon as i try to deploy it it will say:

i saw the thread: https://www.mobileread.com/forums/sh...d.php?t=349814

and did everything that is written there (the empty txt file, copying the fuzzywuzzy code from github into my zip ...)

then i got:

how can i overcome this ?