I am trying to learn currying in Python for my class and I have to overload the () operator for it. However, I do not understand how can I can go about overloading the () operator. Can you explain the logic behind overloading the parentheses? Should I overload first ( and then ) or can I do any of these? Also, is there special name for parentheses operator?
The operator overloading in Python means provide extended meaning beyond their predefined operational meaning. Such as, we use the "+" operator for adding two integers as well as joining two strings or merging two lists. We can achieve this as the "+" operator is overloaded by the "int" class and "str" class.
Python does not limit operator overloading to arithmetic operators only. We can overload comparison operators as well.
1. In the method overloading, methods or functions must have the same name and different signatures. Whereas in the method overriding, methods or functions must have the same name and same signatures.
You can make an object callable by implementing the __call__
method:
class FunctionLike(object): def __call__(self, a): print("I got called with {!r}!".format(a)) fn = FunctionLike() fn(10) # --> I got called with 10!
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