Can't parse MIDI file in Python with music21 library

Question

I'm trying to parse some MIDI files, and nothing happens. It's strange because some files are parsed without any problem and really fast, and some just stuck. I don't know what's the problem because it doesn't show any error, a program just stuck. What are the differences between MIDI files? Why some files can't be parsed?

    midi = converter.parse(file) # some MIDI files just stuck here

    notes_to_parse = None

    try: 
        s2 = instrument.partitionByInstrument(midi)
        notes_to_parse = s2.parts[0].recurse() 
        ...

Answer 1

If you run it in Windows, I think it's a problem about path. Try pass the path like "c:/data/1.mid", not like "data/1.mid", I think it will be solved.