How Do I Call One Function from Another Within the Same Class in Python?

Calling Functions Within a Class

In object-oriented programming, classes often define multiple functions to perform specific tasks. Sometimes, the need arises to call one function from within another function in the same class.

In your specific case, you have a class Coordinates with two functions: distToPoint and isNear. The distToPoint function calculates the distance between two coordinates, and you want to call it from the isNear function.

To call a function within a class, you need to use the self keyword. The self keyword refers to the instance of the class that is currently being used. For example, in your isNear function, you would call the distToPoint function as follows:

def isNear(self, p):
    self.distToPoint(p)

By preceding the function call with self, you are specifying that the distToPoint function should be called on the instance that is currently being used. Without using self, the function call would not know which instance to act upon.

This concept applies to all member functions within a class. By using the self keyword, you can call any function from within any other function in the same class, allowing for complex and interconnected class behavior.

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