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Python Introducing Lists Build an Application Multidimensional Musical Groups

Posted by Angela Anders
Angela Anders
1,844 Points

What am I doing incorrectly?

I know it's probably something extremely simple. Could you please help me out?

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_member in musical_groups:
    if len(musical_groups) == 3:
        print(", ".join(group_member))

2 Answers

<noob />
<noob />
17,062 Points

Hi Angela Anders , how are u doing? :D You are really close!, In the current state you are cheking if the length of musical_groups is equal to 3 which is wrong. the challenge want u to print only the groups which contains 3 elements, in order to do that u need to access each list in the multidimensional list. To pass the challenge u need to do the check on group_member instead because group_member represent each list in the multidimensional list.

I hope u understand :]

Angela Anders
Angela Anders
1,844 Points
Angela Anders
Angela Anders
1,844 Points

Thanks! Duh! I don't know what I was thinking.