Not the best practice as any other errors that are not due to IndexErrors will still return -1. Its best to return -1 ONLY when index is out of range.

I passed all 12 tests but there is 1 exit code error:

Traceback (most recent call last):
File "main.py", line 46, in
Test.assert_equals(doubles(arry),expected)
:
:
:
RecursionError: maximum recursion depth exceeded in comparison

What is happening?

I passed the sample tests but when I press attempt, it shows Response received but no data was written to STDOUT or STDERR. I'm coding in Python. Help!

I get the error on the last test: 583333333333333199654186882007384351197353825559163647809919463614194707991625728 should equal 583333333333333333333333333333333333333291666666666666666666666666666666666666668.

Is it due to a rounding error?