Sum All Numbers until Zero in Python

Enter number: 1
Enter number: 7
Enter number: 3
Enter number: 5
Enter number: 0
Sum: 16

"""
Sums all the input numbers until user provides zero.
"""

sum = 0
num = 0

# Our exit-controlled loop.
while True:
    num = int(input("Enter number: "))
    sum += num
    if num == 0:
        break

print(f"Sum: {sum}")