http.py 文件源码

def fromChunk(data):
    """Convert chunk to string.

    @returns: tuple (result, remaining), may raise ValueError.
    """
    prefix, rest = data.split('\r\n', 1)
    length = int(prefix, 16)
    if length < 0:
        raise ValueError("Chunk length must be >= 0, not %d" % (length,))
    if not rest[length:length + 2] == '\r\n':
        raise ValueError, "chunk must end with CRLF"
    return rest[:length], rest[length + 2:]