idatetime.py 文件源码

def utcfromtimestamp(timestamp):
        """Return the UTC datetime from the POSIX timestamp with tzinfo None.

        This may raise ValueError, if the timestamp is out of the range of
        values supported by the platform C gmtime() function. It's common for
        this to be restricted to years in 1970 through 2038.

        See also fromtimestamp().
        """