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편집 파일: addresses.cpython-39.pyc

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    \[
        (?:
            [a-z]:[a-z]|                # one-char alphabetic range
            [0-9]+:[0-9]+               # ...or a numeric one
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    \]
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    Takes a string and returns a (host, port) tuple. If the host is None, then
    the string could not be parsed as a host identifier with an optional port
    specification. If the port is None, then no port was specified.

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    or an IPv6 address. If allow_ranges is True, then any of those may contain
    [x:y] range specifications, e.g. foo[1:3] or foo[0:5]-bar[x-z].

The port number is an optional :NN suffix on an IPv4 address or host name,
    or a mandatory :NN suffix on any square-bracketed expression: IPv6 address,
    IPv4 address, or host name. (This means the only way to specify a port for
    an IPv6 address is to enclose it in square brackets.)
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