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 Introducing Lists Build an Application Multidimensional Musical Groups

Posted by sam short
sam short
1,481 Points

Error Message in Multidimensional Music groups

I keep getting an error message that says that musical_groups is not defined which I am confused by

groups.py 
musical_groups = [
    ["Ad Rock", "MCA", "Mike D."],
    ["John Lennon", "Paul McCartney", "Ringo Starr", "George Harrison"],
    ["Salt", "Peppa", "Spinderella"],
    ["Rivers Cuomo", "Patrick Wilson", "Brian Bell", "Scott Shriner"],
    ["Chuck D.", "Flavor Flav", "Professor Griff", "Khari Winn", "DJ Lord"],
    ["Axl Rose", "Slash", "Duff McKagan", "Steven Adler"],
    ["Run", "DMC", "Jam Master Jay"],
]
for group in muscial_groups:
    print(",".join(group))

for group_members in muscial_groups:
    print(",".join(group_members))

1 Answer

Pascal Breitrück
PLUS
Pascal Breitrück
Courses Plus Student 3,206 Points
Pascal Breitrück
Pascal Breitrück
Courses Plus Student 3,206 Points

You have a spelling mistake (muscial_groups). In the for-loops write musical_groups .

Greets Pascal