implementation of Single Linked List data structure with python 3

LinkedList.py

class Node:
    def __init__(self, nim=None, nl=None, np=None):
        self.nim = nim
        self.nl = nl
        self.np = np
        self.next = None

class LinkedList:
    def __init__(self):
        self.head = None
        self.tail = None
        self.count = 0 #gak wajib cuma buat hitung panjang LL
    
    def addTail(self, nim, nl, np):
        databaru = Node(nim, nl, np)
        if self.head == None:
            self.head = databaru
            self.tail = databaru
        else:
            self.tail.next = databaru
            self.tail = databaru
    
    def addHead(self, nim, nl, np):
        databaru = Node(nim, nl, np)
        if self.head == None:
            self.head = databaru
            self.tail = databaru
        else:
            databaru.next = self.head
            self.head = databaru
    
    def removeHead(self):
        if self.head == None:
            print("error, data kosong gak bisa di remove!")
        elif self.head.next == None:
            self.head = None
            self.tail = None
        else:
            self.head = self.head.next
    
    def removeTail(self):
        if self.head == None:
            print("error, data kosong gak bisa di remove!")
        elif self.head.next == None:
            self.head = None
            self.tail = None
        else:
            second_last = self.head
            while second_last.next.next:
                second_last = second_last.next
            second_last.next = None

    
    def display(self):
        p = self.head
        while p is not None:
            print("NIM =", p.nim)
            print("Nama Lengkap =", p.nl)
            print("Nama Panggilan =", p.np)
            print("-------------------------------------------")

            p = p.next

    def banyakdata(self):
        total = 0
        p = self.head
        while p is not None:
            total += 1
            p = p.next
        return total

LL = LinkedList() #membuat objek linkedlist

LL.addTail(12345, "Aliif Arief Maulana", "Aliif")
LL.addTail(67890, "Baqeer Andhika Maulana", "Baqeer")

LL.display()

print("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")

LL.addHead(54321, "John Rifqi", "jon")

LL.display()

print(LL.banyakdata())

print("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")

LL.removeHead()

LL.display()

print(LL.banyakdata())

print("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")

LL.removeTail()

LL.display()

print(LL.banyakdata())