https://github.com/python/cpython/issues/87513

library.py

class Mapping:
    def __init__(self, iterable):
        self.items_list = []
        self.__update(iterable)

    def update(self, iterable):
        for item in iterable:
            self.items_list.append(item)

    __update = update   # private copy of original update() method

class MappingSubclass(Mapping):

    def update(self, keys, values):
        # provides new signature for update()
        # but does not break __init__()
        for item in zip(keys, values):
            self.items_list.append(item)

Terminal_output.txt

$(: !550 ) idle3.10
2023-04-24 14:24:52.856 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:24:53.243 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.062 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.076 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.168 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.179 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.184 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.195 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.201 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.211 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.217 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.228 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.234 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.244 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.251 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.261 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.267 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.277 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.284 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.294 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.311 Python[69630:507872] +[CATransaction synchronize] called within transaction
2023-04-24 14:32:36.330 Python[69630:507872] +[CATransaction synchronize] called within transaction