decimal_to_binary.py

class Stack:
  def __ini__(self):
    self.array = []
  def push(self,item):
    self.array.append(itme)
  def pop(self):
    return self.array.pop()
  def isEmpty(self):
    return True if len(array) > 0 else False
  
  def decimal_to_binary(number):
    s = Stack()
    
    while number > 0 :
      s.push(number % 2)
      number = number // 2
    
    binary_number = ""
    
    while not s.isEmpty():
      binary_number = binary_number + str(s.pop())
    
    return binary_number
  
>>> print(decimal_to_binary(233))
>>> '11101001'