Pavlos Parissis wrote: > I need to store values for metrics and return the average for some > and the sum for the rest. Thus, I thought I could extend > collections.Counter class by returning averages for some keys. > > My class modifies the update() to increment a counter and the > __getitem__ to perform the calculation. But, I get RuntimeError: maximum > recursion depth exceeded as I access an attribute inside > __getitem__. > > Does anyone has an idea how I can achieve this?
> class CounterExt(Counter): > def __getitem__(self, key): > if (self.avg_metrics is not None and key in self.avg_metrics): > return self[key] / self._counter > else: > return self[key] self[key] will call the CounterExt.__getitem__() method again. Use super().__getitem__(key) instead to invoke Counter.__getitem__(). -- https://mail.python.org/mailman/listinfo/python-list
