Function ip2num

Lib/urllib/request.py:1965–1970

(ipAddr)

    hostonly, port = _splitport(host)

    def ip2num(ipAddr):
        parts = ipAddr.split('.')
        parts = list(map(int, parts))
        if len(parts) != 4:
            parts = (parts + [0, 0, 0, 0])[:4]
        return (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8) | parts[3]

    # Check for simple host names:
    if '.' not in host: