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Python Introducing Lists Build an Application Multidimensional Musical Groups

Ben Crocker
Ben Crocker
2,756 Points
Posted by Ben Crocker
Ben Crocker
2,756 Points

Stuck on this Musical Groups Challenge part 2

These are the instructions: "Can you loop through each group and output the members joined together with a ", " comma space as a separator, please?" I was thinking it would involve an if len(musical_groups) =>4: then print them But I can't seem to get that working. But is that even the right code?

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"],
]
# Your code here
for groups in musical_groups:
    group_members = ", ".join(groups)
    print(group_members)

if musical_groups.len

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

Here's a few hints:

  • your test will need to go before the print, to determine whether to print or not
  • lists don't have a "len" property, but you can check length using the "len()" function
  • you'll want to check on the length of each group, not the whole master list