div.py

import sys
sys.path.append('C:/Users/vkjof/Documents/Python')
import pred

def myIncrement(number):
	'''
	Objective      : To compute the increment of given number.
	Input Variabes :
	        number : Number of which increment is to be computed.
	Return Value   : Incremented value of given number.
	'''
	#Approach      : Add 1 to given number.
	return number+1

def mySub(number1,number2):
	'''
	Objective      : To compute the sum of given two numbers.
	Input Variabes :
	       number1 : integer - First number inputted by user.
	       number2 : integer - Second number inputted by user.

	Return Value   : Difference of given two numbers.
	'''
	#Approach      : Use of recursion and myIncrement function.
	if number2==0:
		return number1
	else:
		number1=pred.predecessor(number1)
		number1=mySub(number1,pred.predecessor(number2))
		return number1

def myDiv(dividend,divisor,quotient=0):
	if dividend<divisor:
		return quotient
	else:
		quotient=quotient+1
		return myDiv(mySub(dividend,divisor),divisor,quotient)

	
def main():
	'''
	Objective      : To compute the difference of given two numbers.
	Input Variabes : None.
	Return Value   : None.
	'''
	#Approach      : Invoke mySum function.
	dividend=int(input('Enter dividend: '))
	assert dividend>=0
	divisor=int(input('Enter divisor: '))
	assert divisor>0
	print('Quotient is ',myDiv(dividend,divisor))
	
if __name__ == '__main__':
	main()