DataTreeGrab.py 文件源码

def simplefilter(self, action, category=Warning, lineno=0, append=0, caller_id = 0, severity=0):
        with self.warn_lock:
            assert action in ("error", "ignore", "always", "default", "module",
                              "once"), "invalid action: %r" % (action,)
            assert isinstance(category, (type, types.ClassType)), \
                   "category must be a class"
            assert issubclass(category, Warning), "category must be a Warning subclass"
            assert isinstance(lineno, int) and lineno >= 0, \
                   "lineno must be an int >= 0"
            item = (action, None, category, None, lineno, caller_id, severity)
            if item in self.filters:
                self.filters.remove(item)
            if append:
                self.filters.append(item)
            else:
                self.filters.insert(0, item)