Mission is here: https://py.checkio.org/ru/mission/calculate-islands/
My code gives correct result and PyCharm does not show any error, but here is this:
https://prnt.sc/1wy48jc
[9] is correct, why it tells the line 18 has error?
So, do something please, thank you.
Created at: 2021/10/21 10:17; Updated at: 2021/10/21 11:08
The question is resolved.