negative.py

class Sumofnumbers:
	
	# find sum of negative numbers
	def negSum(self, list):

		# counter for sum of
		# negative numbers
		neg_sum = 0

		for num in list:

			# converting number
			# to integer explicitly
			num = int(num)

			# if negative number
			if(num < 0):

				# simply add to the
				# negative sum
				neg_sum + = num

		print("Sum of negative numbers is ", neg_sum)

	# find sum of positive numbers
	# according to categories
	def posSum(self, list):

		# counter for sum of
		# positive even numbers
		pos_even_sum = 0

		# counter for sum of
		# positive odd numbers
		pos_odd_sum = 0
		for num in list:

			# converting number
			# to integer explicitly
			num = int(num)

			# if negative number
			if(num >= 0):

				# if even positive
				if(num % 2 == 0):

					# add to positive
					# even sum
					pos_even_sum + = num
				else:

					# add to positive odd sum
					pos_odd_sum + = num

		print("Sum of even positive numbers is ",
			pos_even_sum)

		print("Sum of odd positive numbers is ",
			pos_odd_sum)


# input a list of numbers
list_num = [-7, 5, 60, -34, 1]

# creating an object of class
obj = Sumofnumbers()

# calling method for sum
# of all negative numbers
obj.negSum(list_num)

# calling method for
# sum of all positive numbers
obj.posSum(list_num)