Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Python Basics Functions and Looping Raise an Exception

Can you please raise a ValueError if the product_idea is less than 3 characters long? product_idea is a string.

HELP!

suggestinator.py
def suggest(product_idea):
    return product_idea + "inator"
Except ValueError:
    raise ValueError("product_idea <3")

2 Answers

Dave StSomeWhere
Dave StSomeWhere
19,822 Points

Hello Luis,

You need to code the condition as requested and then raise the exception.

The best place to start is with the documentation that says "The raise statement allows the programmer to force a specified exception to occur." - see Section 8.4

Try inserting an if statement that checks to see if there are 3 or more characters in the passed parameter, if true then execute the return statement as written. Otherwise raise the value error - which is just raise ValueError(nothing more is needed). Of course you could also switch the if else around and check the less than 3 characters.

Does that get you rolling - just let me know if you need anything additional.

I've made a function that creates brand new product names using "artificial intelligence".

I have a problem though, people keep on adding product ideas that are too short. It makes the suggestions look bad.

Can you please raise a ValueError if the product_idea is less than 3 characters long? product_idea is a string. Thanks in advance!

I've made a function that creates brand new product names using "artificial intelligence".

I have a problem though, people keep on adding product ideas that are too short. It makes the suggestions look bad.

Can you please raise a ValueError if the product_idea is less than 3 characters long? product_idea is a string. Thanks in advance!

.....this is what the real question states... still lost!

Dave StSomeWhere
Dave StSomeWhere
19,822 Points

Is English you first language? Are you having trouble understanding what is being asked? Do you know the syntax of an if else statement?

Let's break it down a bit.

We have a function that accepts 1 parameter which is a string and returns 1 value which is also a string. The challenge is asking us to enhance the function by adding in a check for the length of the input parameter string. When the string doesn't pass the new condition we are to raise a ValueError exception.

Can you code an if statement that checks the length of a string?