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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def magic_plan_b(filename):
    '''
    Use this in instances where
    python-magic is MIA and can't be installed
    for whatever reason
    '''
    cmd = shlex.split('file --mime-type --mime-encoding ' + filename)
    stdout, stderr = Popen(cmd, stdout=PIPE).communicate()
    stdout = stdout.decode("utf-8")
    mime_str = stdout.split(filename + ': ')[1].strip()
    return mime_str