How Can I Call a Function Within a Class?
I Have This Code Which Calculates the Distance Between Two Coordinates. the Two Functions Are Both Within the Same Class. However, How Do I Call the Function...
I have this code which calculates the distance between two coordinates. The two functions are both within the same class.
However, how do I call the function distToPoint in the function isNear?
class Coordinates:
def distToPoint(self, p):
"""
Use pythagoras to find distance
(a^2 = b^2 + c^2)
"""
...
def isNear(self, p):
distToPoint(self, p)
...
2 Answers
Since these are member functions, call it as a member function on the instance, self.
def isNear(self, p):
self.distToPoint(p)
...
That doesn't work because distToPoint is inside your class, so you need to prefix it with the classname if you want to refer to it, like this: classname.distToPoint(self, p). You shouldn't do it like that, though. A better way to do it is to refer to the method directly through the class instance (which is the first argument of a class method), like so: self.distToPoint(p).
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