Call a function written inside of init somewhere else in the Class

Question

So say I have a Class:

class Testclass:
      def __init__(self, key)
          self.key = key


          def function(self, key):
              do something ...

can I call specifically the function without calling the whole __init__ somewhere down the line inside a Testclass Method?

I need this because I have two functions within __init__ and I need them separately.

Or maybe I am doing this all wrong from the get go, so any other suggestions would be welcome.

You cant. Its a function scoped function and only available inside it. If you need them outside, declare them as member functions of the class. — Patrick Artner, May 08 '20 at 11:22
@Torxed well I tried and got AttributeError that there is no attribute "function" my original issue is that I need to have a random list in Max-Heap state after initialisation so I wrote heapify and buildHeap functions inside __init__ but I need to call them later in a HeapSort Method. and yea it an assignment — Leonardo, May 08 '20 at 11:29

BlackBear · Accepted Answer · 2020-05-08T11:36:38.710

1

No you cannot, because those functions are local to __init__. Why don't you make them methods of the class?

class Testclass:
  def __init__(self, key)
      self.key = key
      result = self.function(key)

  def function(self, key):
      do something ...

edited May 08 '20 at 11:36

answered May 08 '20 at 11:22

BlackBear

see my comment above why I can not write as Methods. I need something achieved right in the __init__ – Leonardo May 08 '20 at 11:31
@Leonardo you can call that function from within init (see my edit) – BlackBear May 08 '20 at 11:36
that was my first instinct and I tried it, but I was getting the error that function is not defined or something along those lines, I may have made syntax errors though... let me try that again. – Leonardo May 08 '20 at 11:37
yep that worked, I must have messed up something with self's before... I just started OOP... TY – Leonardo May 08 '20 at 11:42
@Leonardo no worries! Have fun :) – BlackBear May 08 '20 at 11:43
Am I stupid if I bring up the fact that you can create non-instance-classes? `class TestClass: def function(key): ...` and access it with `TestClass.function()` without an instance? – Torxed May 08 '20 at 13:57

Call a function written inside of __init__ somewhere else in the Class