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

Haydar Al-Rikabi
Haydar Al-Rikabi
5,971 Points
Posted by Haydar Al-Rikabi
Haydar Al-Rikabi
5,971 Points

What is wrong with my answer?

I am stuck with the following quiz:

Combine the sundaes list into a new variable named display_menu, where each item in the list is rejoined together by a comma and a space (", ").

Then reassign the menu variable to use the existing variable and .format() to replace the placeholder with the new string in display_menu.

If you're really brave, you can even accomplish this all on the same line where menu is currently being set.

This is my answer:

available = "banana split;hot fudge;cherry;malted;black and white"
sundaes = available.split(";")
menu = "Our available flavors are: {}."
display_menu = sundaes.join(", ")
menu = menu.format(display_menu)

2 Answers

Steven Parker
Steven Parker
230,274 Points
Steven Parker
Steven Parker
230,274 Points

It looks like your arguments are swapped.

It may look odd, but join is a string method that takes a sequence argument. You've applied it to a sequence and gave it a string argument.

Haydar Al-Rikabi
Haydar Al-Rikabi
5,971 Points
Haydar Al-Rikabi
Haydar Al-Rikabi
5,971 Points

So, the issue was on line 4. I have swapped my arguments and this has resolved my issue.

The correct syntax now is: display_menu = ", ".join(sundaes)

Thanks