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Python Python Basics (Retired) Putting the "Fun" Back in "Function" Functions

Stephan Porsche
Stephan Porsche
2,864 Points
Posted by Stephan Porsche
Stephan Porsche
2,864 Points

I can't find the right solution of the task "functions.py" but my own code in the editor returns the right output.

My own code written in a editor gives me the right output ("The sum of [1, 2, 3] is 6."), but the check fails.

My code: 

list = [1, 2, 3]

def add_list(list):
    sum = 0
    for num in list:
    sum = sum + num
    return sum

def summarize(list):
    convert_list = (str(w) for w in list)
    new_sum = add_list(list)
    new_str = str(new_sum)
    print("The sum of ["+", ".join(convert_list)+"] is "+new_str+".")

summarize(list)

Please help!

2 Answers

David Bouchare
David Bouchare
9,224 Points
David Bouchare
David Bouchare
9,224 Points

Hey Stephan,

It does work indeed when I execute the code on my machine, but doesn't in the Treeshouse submission mode.

I'd like to have the opinion of some other folks here, but you really don't need to create those 3 variables convert_list, new_sum and new_str. All of this can be done in one line, replacing the index values with the variables you need:

def summarize(list1):
    return "The sum of {0} is {1}.".format(list1, add_list(list1))

And that should be enough.

Stephan Porsche
Stephan Porsche
2,864 Points
Stephan Porsche
Stephan Porsche
2,864 Points

Thx for your hint though! That's a great shortcut :)

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

You need to return the string, not print() it.

Stephan Porsche
Stephan Porsche
2,864 Points
Stephan Porsche
Stephan Porsche
2,864 Points

Omg, that was obvious my fault. I should better read the task twice next time... Davids line of code helped me alot. I only had to add the "." at the end and now it runs smoothly. Thanks so much guys.

David Bouchare
David Bouchare
9,224 Points
David Bouchare
David Bouchare
9,224 Points

Ah yes my mistake. Cool. And thanks Kenneth!