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) Python Data Types Use .split() and .join()

Ricky Ackerman
Ricky Ackerman
705 Points
Posted by Ricky Ackerman
Ricky Ackerman
705 Points

Not sure where i'm going wrong with question 3. Please identify mistake. menu = "menu".format(display_menu)

Not sure where i'm going wrong with question 3. Please identify mistake.

banana.py 
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

K Cleveland
K Cleveland
21,839 Points
K Cleveland
K Cleveland
21,839 Points

Hey! I would go through each part of what the challenge is asking you -- especially part 3: 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 (", ").

display_menu = sundaes + ', '.join()

What does this mean? Is this what you want? Good luck! :)

Ricky Ackerman
Ricky Ackerman
705 Points
Ricky Ackerman
Ricky Ackerman
705 Points

That's the first part of the code which I did. It's the second part of the question I am having trouble with. See below

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.

K Cleveland
K Cleveland
21,839 Points
K Cleveland
K Cleveland
21,839 Points

Hey!

display_menu = sundaes + ', '.join()

check out your syntax for using .join(). The join() needs something to join -- in this case, you want to join the strings in sundaes. How does join get that object to iterate over? If you write:

', '.join()

the method won't have anything to join. Hopefully this helps!

After that, look at this line:

menu = "menu".format(display_menu)

This will give an error as well, but I think you'll be able to see why that is (look at what you're trying to format). Good luck!