sre_compile.py 文件源码

def _bytes_to_codes(b):
    # Convert block indices to word array
    import array
    if _sre.CODESIZE == 2:
        code = 'H'
    else:
        code = 'I'
    a = array.array(code, bytes(b))
    assert a.itemsize == _sre.CODESIZE
    assert len(a) * a.itemsize == len(b)
    return a.tolist()