py_lib/requirements.txt: fixed bad results of a weird merge
py_lib/requirements.txt: fixed bad results of a weird merge

fretboardfreak/code,fretboardfreak/code,fretboardfreak/code,fretboardfreak/code,fretboardfreak/code,fretboardfreak/code,fretboardfreak/code,fretboardfreak/code,fretboardfreak/code