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

Mahbubul Haq Bhuiyan
Mahbubul Haq Bhuiyan
582 Points

What will be the code?

What would be the code to complete this task,tried but failed.

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"],
]
Steven Parker
Steven Parker
229,744 Points

Please show what you've tried, and perhaps we can give you some help on getting it to pass.

1 Answer

Use a for loop to go through each "group". Each group then contains a list of members.

for group in musical_groups:
    print(", ".join(group))

So here I am going to go through the main list and for each list it finds in the main list it will join that lists contents and separate it with a comma by using the join function.