How to check whether for loop ends completely in python?

Question

This is a ceased for loop :

for i in [1,2,3]:
    print(i)
    if i==3:
        break

How can I check its difference with this :

for i in [1,2,3]:
    print(i)

This is an idea :

IsBroken=False
for i in [1,2,3]:
    print(i)
    if i==3:
        IsBroken=True
        break
if IsBroken==True:
    print("for loop was broken")

Answer 1

for loops can take an else block which can serve this purpose:

for i in [1,2,3]:
    print(i)
    if i==3:
        break
else:
    print("for loop was not broken")

Answer 2

Python for loop has a else clause that is called iff the loop ends.

So, this would mean something in line

for i in [1,2,3]:
    print(i)
    if i==3:
        break
else:
    print("Loop Ended without break")

If instead you need to handle both the scenario, using exception for sequence control is also a viable alternative

try:
    for i in [1,2,3]:
        print(i)
        if i==3:
            raise StopIteration
except StopIteration:
    print ("Loop was broken")
else:
    print ("Loop was not broken")