Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics (2015) Number Game App Squared

How do I solve it

I need to write a function named squared that takes a single argument.

If the argument can be converted into an integer, convert it and return the square of the number (num ** 2 or num * num).

If the argument cannot be turned into an integer, return the argument multiplied by its length. how can I convert a string to an integer

squared.py
def squared(num):
    try int(num):
        return num*num
    except ValueError:
        return num*len(num)






# EXAMPLES
# squared(5) would return 25
# squared("2") would return 4
# squared("tim") would return "timtimtim"

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points

You're very close. int(num) will check if the conversion is possible but it doesn't retain the converted value. Either, update num with assigned conversion:

    try:
        int = int(num)
        return num * num
    except....

Or convert in the `return statement:

    try:
        return int(num) * int(num)
    except....