__call__ in Python
In this video, we will discuss the _call_ method and how to implement it in a class in Python.
When we invoke a function, we simply use the function name with parentheses(func()). This notifies the interpreter that a function is being called. Internally, it is equivalent to this expression func.__call__(), because functions in Python are objects and the call method is what gets executed when the function is invoked.
So, when we call a function in Python, the interpreter executes the _call_ method of the function object behind the scenes.
Chapters:
⏩ 0:00 Intro to _call_
⏩ 0:44 Basic example
⏩ 0:57 Where to use _call_ with example
⏩ 1:27 Real-life example
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