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Python Python Basics (2015) Logic in Python Loop

Saurabh Dahal
Saurabh Dahal
3,905 Points
Posted by Saurabh Dahal
Saurabh Dahal
3,905 Points

Why does my code not work? it works in my python shell but not in this quiz application

Bummer! unsupported operand type(s) for +: 'NoneType' and 'str'

However, i did tthis on my computers python shell, and it worked as I wanted it to.

loop.py 
hellos = [
    "Hello",
    "Tungjatjeta",
    "Grüßgott",
    "Вiтаю",
    "dobrý den",
    "hyvää päivää",
    "你好",
    "早上好"
]
for word in hellos:
    print(str(word)) + (" World")

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

You are very close. The print command needs to encompass both strings. The current parens are trying to concatenate the return value of the print, which is None, to the string " World". Since the hello is already a string, it does not need to be wrapped in str(). Clean up the parens and it should pass.

Post back if you need more help. Good luck!!