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Python

I cannot get part two on the final Introducing Lists Challenge with the musical groups in the groups.py file.

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 group in musical_groups: new_group = (", ".join(group)) print(new_group)

The first part is fine. It's the second part I can't get.

for group in musical_groups: if len(group) == 3: print(group)

I also tried this:

'''for group_members in new_group: if len(group_members) == 3: print(new_group)

And this

len_new_group = len(new_group) if len_new_group == 3: print(len_new_group)

And this, among other things

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

for group_members in group: if len(group_members) == 3: print(group)'''

btw Weezer was just here last week and I missed it

1 Answer

Steven Parker
Steven Parker
243,160 Points

It's a bit hard to read all the unformatted code, but I think you're getting the tasks confused. For task 2, you just need to add the conditional to test the length, you don't print the length.

You still print out the joined members (the "new_group") just like you did in task 1, but now you only do it for groups of the right size.