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Python Introducing Lists Build an Application Multidimensional Musical Groups

Posted by sam short
sam short
1,481 Points

Stuck on multidimensional grouping

I cannot figure out how to loop through the multidimensional list and join them with a comma.

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_members in muscial_groups:
    print(group.join("," ,group_members))

1 Answer

Josh Keenan
Josh Keenan
20,315 Points
Josh Keenan
Josh Keenan
20,315 Points

You are using the join method the wrong way:

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

You have to call the method on a string and pass the thing you want to join in as the argument.