Get count of iterations after for loop is completed

In a python for loop, how do I get the value of i below when the loop is completed? Is there any idiomatic way to do that without defining a variable outside and loop and storing i within it in each loop run? Like some sort of finally for a for loop?

i

finally

for i, data in enumerate(somevar):
# do something
# get what i was when for loop completed here??


2 Answers
2

Do nothing. A new scope is not created by your for loop. You can access i immediately after and outside your loop:

for

i

for i, data in enumerate(somevar):
pass

print(i) # 9


See Scoping in Python 'for' loops for more detail.

i = None

0

enumerate

start

1

UnboundLocalError

i

i will work for what you want.

i

for loops don't have a finally block, but they do have an else which get's executed if you don't hit a break in the main body.

for

finally

else

break

for i, value in enumerate(values):
if value == some_value:
print("Found the value")
break
else:
print("Didn't find value we were looking for")

print("Went through for loop times".format(i))


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