integer_to_binary_using_stack.py

class Stack():
    def __init__(self):   
        self.items = []    ## Empty list intilize

    def push(self,item):
        self.items.append(item)  ## simple appending to list

    def pop(self):
        return self.items.pop()  ## Removing top element of the stack

    def is_empty(self):
        return self.items==[]  ### Checking whether the stack is empty or not

    def peek(self):
        if not self.is_empty():
            return self.items[-1]  ## returnign top element using [-1]=last element
 
    def show_stack(self):
        return self.items   ## Printing all the items


number = int(input("Enter an Integer"))

def div_by_2(number):
    s = Stack()  ## object for stack
    while number > 0:   ## While number is greate than 0
        rem = number % 2  ## divide the number by 2
        s.push(rem)       ## PUSH the rem on to stack
        number = number // 2  ## divide the number by //2 so that we can get integer as output

    bin_num = ''
    while not s.is_empty():        ## Until stack is not empty 
        bin_num += str(s.pop())    ## Pop each element from the stack and concatenate it 

    return bin_num  ## Return binary representation
print(div_by_2(number))   ## Print the binary number