Develop a program in Python that sums up all the numbers of a list.
[1, 2, 3, 4, 5]
# define the list
my_list = [1, 2, 3, 4, 5]

# compute the total
total = 0
for num in my_list:
 total += num

# print the result
print("The sum of all numbers in the list is: " + str(total))