python - Why First Class Function Notation is not working in the class methods?

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65599108/why-first-class-function-notation-is-not-working-in-the-class-methods

Answer 1

You are not using references to your class functions initializing mutators; you should

mutators=[
    self.delete_random_character,
    self.insert_random_character, 
    self.flip_random_character
]