10 def showwarning(message, category, filename, lineno, file=None, line=None):  argument
12     msg = WarningMessage(message, category, filename, lineno, file, line)
15 def formatwarning(message, category, filename, lineno, line=None):  argument
17     msg = WarningMessage(message, category, filename, lineno, None, line)
36     category = msg.category.__name__
109             sw(msg.message, msg.category, msg.filename, msg.lineno,
126             return fw(msg.message, msg.category,
130 def filterwarnings(action, message="", category=Warning, module="", lineno=0,  argument
145     assert isinstance(category, type), "category must be a class"
146     assert issubclass(category, Warning), "category must be a Warning subclass"
163     _add_filter(action, message, category, module, lineno, append=append)
165 def simplefilter(action, category=Warning, lineno=0, append=False):  argument
179     _add_filter(action, None, category, None, lineno, append=append)
219     action, message, category, module, lineno = [s.strip()
222     category = _getcategory(category)
238     filterwarnings(action, message, category, module, lineno)
251 def _getcategory(category):  argument
252     if not category:
254     if '.' not in category:
256         klass = category
258         module, _, klass = category.rpartition('.')
266         raise _OptionError("unknown warning category: %r" % (category,)) from None
268         raise _OptionError("invalid warning category: %r" % (category,))
287 def warn(message, category=None, stacklevel=1, source=None):  argument
291         category = message.__class__
293     if category is None:
294         category = UserWarning
295     if not (isinstance(category, type) and issubclass(category, Warning)):
297                         "not '{:s}'".format(type(category).__name__))
324     warn_explicit(message, category, filename, lineno, module, registry,
327 def warn_explicit(message, category, filename, lineno,  argument
342         category = message.__class__
345         message = category(message)
346     key = (text, category, lineno)
354             issubclass(category, cat) and
374         oncekey = (text, category)
382         altkey = (text, category, 0)
394     msg = WarningMessage(message, category, filename, lineno, source)
403     def __init__(self, message, category, filename, lineno, file=None,  argument
406         self.category = category
412         self._category_name = category.__name__ if category else None
506     warn(msg, category=RuntimeWarning, stacklevel=2, source=coro)
542         filterwarnings("default", category=DeprecationWarning,
544         simplefilter("ignore", category=DeprecationWarning, append=1)
545         simplefilter("ignore", category=PendingDeprecationWarning, append=1)
546         simplefilter("ignore", category=ImportWarning, append=1)
547         simplefilter("ignore", category=ResourceWarning, append=1)