Missing Arguments [closed]

Question

---python

def insert_begining(self, data):
    nb = Node(data)
    nb.next = self.head
    self.head = nb

---

 def display(self):
     if self.head is None:
     print('The list is empty')
        else:
        temp = self.head
            while temp:
            print(temp.data, "-->", end = " " )
            temp = temp.next


L.insert_begining(23)

L.display()

Errors: missing 1 required positional argument: 'data'& missing 1 required positional argument: 'self'

Answer 1

The question should be explicit. What you have here, if I'm to guess, is that you copied some code from a class and didn't then put it into its own new class. Only functions that are members of a class require the 'self' parameter (which is handled automatically by the interpreter). Otherwise, self just becomes another parameter in your list that needs to be specified by the caller.