I have gone through most of the documentation of __getitem__() in the Python docs, but I am still unable to grasp the meaning of it. So all I can understand is that __getitem__() is used to implement calls like self[key]. But what is the use of it? Lets say I have a python class defined in this way: class Person: def __init__(self,name,age): self.name = name self.age = age def __getitem__(self,key): print ("Inside `__getitem__` method!") return getattr(self,key) p = Person("Subhayan",32) print (p["age"]) This returns the results as expected. But why use __getitem__() in the first place? I have also heard that Python calls __getitem__() internally. But why does it do it? Can someone please explain this in more detail? Continue reading...
