dateformat.py 文件源码

def e(self):
        """
        Timezone name.

        If timezone information is not available, this method returns
        an empty string.
        """
        if not self.timezone:
            return ""

        try:
            if hasattr(self.data, 'tzinfo') and self.data.tzinfo:
                # Have to use tzinfo.tzname and not datetime.tzname
                # because datatime.tzname does not expect Unicode
                return self.data.tzinfo.tzname(self.data) or ""
        except NotImplementedError:
            pass
        return ""