python - How can I check if a warning was raised but still not to turn it into an exception -


i have method get_font can raise defaultfontwarning. want check if warning raised , run piece of code if it's case.

my current solution is

def set_font(self):     warnings.catch_warnings():         warnings.filterwarnings("error")         try:             self.font = get_font(self.path, self.size)         except defaultfontwarning:             self.is_default = true

this attaches is_default self, silences warning user cannot see it.

how can check if warning raised still not turn exception , output it?

raise warning (or type; such userwarning), retain original traceback.

def set_font(self):     warnings.catch_warnings():         try:             self.font = get_font(self.path, self.size)         except defaultfontwarning e:             raise warning(*e.args).with_traceback(e.__traceback__) none

using from none rid of during handling ... message. can use own message such 'bad font' replacing *e.args:

raise warning('bad font').with_traceback(e.__traceback__) none

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