“Analise o nome do arquivo” Respostas de código

Analise o nome do arquivo

def parse_datastream(filename):
    splits = filename.split('.')
    datastream = '.'.join(splits[:2])
    partial_ds = splits[0]
    site = partial_ds[:3]
    for index, character in enumerate(partial_ds):
        if character.isupper():
            break
    instrument = partial_ds[3:index]
    facility = partial_ds[index:]
    level = splits[1]
    date = splits[-3]
    time = splits[-2]
    extension = splits[-1].strip()
    return_dict = {
        'datastream':datastream, 
        'site':site, 
        'instrument':instrument, 
        'facility':facility, 
        'level':level, 
        'date':date, 
        'time':time, 
        'extension':extension
    }
    return return_dict