else executed with if inside of for

Question

I have a problem with 'if' executed together with 'else' when the value is equal to zero, the indentation seems fine so else is not part of for-else loop:

for i in range(0,5):
    if i == 0:
        print("i0 =", i)
    if i == 2:
        print("i2 =", i)
    else:
        print("else i=", i)


i0 = 0
else i= 0
else i= 1
i2 = 2
else i= 3
else i= 4
>>>

You actually have 2 if blocks here. The first one which is alone (without any else) and the second one which does have an else clause. Both of them are ran in every iteration. — Ma0
– Ma0, Commented Feb 5, 2018 at 15:27

bipll · Accepted Answer · 2018-02-05 15:28:12Z

4

You don't have any problems. If you wanted those two ifs to form a single conditional branching, the second one should have been an elif. Right now, the loop body is comprised of two separate if statements and they are executed as: first, i is compared against zero; next again, i is compared against 2. So, when it is 0, the first if's then-block is triggered, and since it is not 2, the second if's else-block is triggered as well.

Did you actually mean

for i in range(0,5):
    if i == 0:
        print("i0 =", i)
    elif i == 2:
        print("i2 =", i)
    else:
        print("else i=", i)

?

answered Feb 5, 2018 at 15:28

bipll

12k1 gold badge21 silver badges33 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Meehow Over a year ago

that makes sense - I forgot about elif

ReturnTable · Accepted Answer · 2018-02-05 15:35:03Z

0

You're probably invalidating the first condition by the second "if" in the statement. I don't know python thus I'm not aware of any other conditional logic but it should be something like this:

for i in range(0,5):
if (i == 0 or i == 2):
    print("if i =", i)

else:
    print("else i=", i)

answered Feb 5, 2018 at 15:35

ReturnTable

3654 silver badges13 bronze badges

Collectives™ on Stack Overflow

else executed with if inside of for

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related