Python newbie here. The docs have an example for OrderedDict usage:
class LRU(OrderedDict):
'Limit size, evicting the least recently looked-up key when full'
def __init__(self, maxsize=128, /, *args, **kwds):
self.maxsize = maxsize
super().__init__(*args, **kwds)
What is the / in the __init__ method signature?
