zipped

zipped(document: bytes, name: str = 'score.musicxml')

document packed as an .mxl archive: an uncompressed mimetype first, the container manifest naming name, and the score itself.

>>> archive = zipped(b'<score-partwise version="4.0"><part-list/></score-partwise>')
>>> load(io.BytesIO(archive)).tag
'score-partwise'