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

Ahmed Ali
PLUS
Ahmed Ali
Courses Plus Student 3,018 Points

What I am missing in this simple code to print musical groups with 3 members?

Seems pretty straight forward but my error is that the first group isn't in the final results... 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 members in musical_groups:

members = ", ".join(members)
    if len(members) == 3:
        print(members)

'''

sorry for crappy format couldn't figure it out in this text block. 😅

1 Answer

Steven Parker
Steven Parker
231,007 Points

If you join "members" before testing it, it gets converted into a string. Then, the len() of it will be the number of characters in the string and not the number of members in the group.