it's probably because you're trying to split a string that has space on it's end so it gives you something like that:
"rona ".split(' ') ==> ['rona', ''],
and you're probably pulling dictionary[''] which raises an error.. that was my case anyways
i just trimmed the spaces on the end of the morseCode (morseCode.strip())
good luck

You're the man bro
I figured the problem as I saw the test case as you said.. thanks.

I keep failing the 10th test case without actual reason..

Test Results:
Example from description
Test Passed
Basic Morse decoding
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
STDERR:
Traceback:
in
in decodeMorse
KeyError: ''

whatever I tried on my IDE works just fine.. can I get the 10th test case? 'cause it's working fine and I don't wanna forfeit..

I pass all the tests on python except..

Test Results:
Example from description
Test Passed
Basic Morse decoding
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
STDERR:
Traceback:
in
in decodeMorse
KeyError: ''

whatever I tried on my IDE works just fine.. can I get the 10th test case? 'cause it's working fine and I don't wanna forfeit..

you could have created the dictionary with a loop instead

that's good to know, thanks!