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Python Introducing Lists Build an Application Multidimensional Musical Groups

zheshuozhang
PLUS
zheshuozhang
Courses Plus Student 820 Points

how can I fix my code

how to fix the problem

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 musical in musical_groups:
    musical = ", ".join(musical_groups[0] + musical_groups[1] + musical_groups[2] + musical_groups[3] + musical_groups[4] + musical_groups[5] + musical_groups[6])

musical1 = musical.split(", ")
print(musical1[0], musical1[1], musical1[2], musical1[7], musical1[8], musical1[9], musical1[23], musical1[24], musical[25])

1 Answer

Steven Parker
Steven Parker
221,438 Points

Here's a few hints:

  • the argument to "join" should be just a single list name
  • the list you'll want to join is the one for a single group, "musical" (not "musical_groups")
  • you only need to "print" the result of the join, not assign it
  • since you'll be printing inside the loop, you won't need any of the code after the loop
zheshuozhang
zheshuozhang
Courses Plus Student 820 Points

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

After I fix the code why there still have errors? I think the output should be correct. Can you help me to check it?

Steven Parker
Steven Parker
221,438 Points

Your "join" string has only a comma. The challenge wants "the members joined together with a ", " comma space"