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Python Python Basics (2015) Logic in Python Loop

Harrison Court
Harrison Court
4,232 Points
Posted by Harrison Court
Harrison Court
4,232 Points

I need you to write a for loop that goes through each of the words in hellos and prints each word plus the word "World".

I get a "can only concatenate list not str" error.

loop.py 
hellos = [
    "Hello",
    "Tungjatjeta",
    "Grüßgott",
    "Вiтаю",
    "dobrý den",
    "hyvää päivää",
    "你好",
    "早上好"
]

for world in hellos:
    print(hellos + "World")
Noam Modai
Noam Modai
12,127 Points
Noam Modai
Noam Modai
12,127 Points

When you are using a for loop you define a new variable that goes through each of the terms in your list. In your case this variable is "world". It will first contain world = "Hello", then run through the loop. Then world= "Tungjatjeta" and run throught the loop, etc.. until it has been throught all the terms in the list.

During this entire time, the "hellos" variables is unchanged and containts the entire list.

Inside the loop you should therefore use the "world" variable which contains a single string, not "hellos" which contains the entire list of string.

for world in hellos:
    print(world + "World")

Hope this helped

1 Answer