tzwin.py 文件源码

def __init__(self, name):
        self._name = name

        handle = _winreg.ConnectRegistry(None, _winreg.HKEY_LOCAL_MACHINE)
        tzkey = _winreg.OpenKey(handle, "%s\%s" % (TZKEYNAME, name))
        keydict = valuestodict(tzkey)
        tzkey.Close()
        handle.Close()

        self._stdname = keydict["Std"].encode("iso-8859-1")
        self._dstname = keydict["Dlt"].encode("iso-8859-1")

        self._display = keydict["Display"]

        # See http://ww_winreg.jsiinc.com/SUBA/tip0300/rh0398.htm
        tup = struct.unpack("=3l16h", keydict["TZI"])
        self._stdoffset = -tup[0]-tup[1]         # Bias + StandardBias * -1
        self._dstoffset = self._stdoffset-tup[2] # + DaylightBias * -1

        (self._stdmonth,
         self._stddayofweek,  # Sunday = 0
         self._stdweeknumber, # Last = 5
         self._stdhour,
         self._stdminute) = tup[4:9]

        (self._dstmonth,
         self._dstdayofweek,  # Sunday = 0
         self._dstweeknumber, # Last = 5
         self._dsthour,
         self._dstminute) = tup[12:17]