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Python Introducing Lists Build an Application Multidimensional Musical Groups

Am i supposed to use another for loop inside for loop to operate matrices like in C?

I am from C background and we use for loops to go through matrices to print the variables, is this similar to what we do in here?

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"],
# Your code here
for i in musical_groups:

1 Answer

Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

Hi there! That is not actually needed here. Each group inside of the musical_groups array is in itself an array containing strings as elements. Remember the .join() method will take an array and join its members with the string you provide just before the .join() method.

Hint :bulb: The challenge is expecting you to use the built-in .join() method.

I think you can get it with this hint, but let me know if you're still stuck! :sparkles: