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Python Introducing Lists Build an Application Multidimensional Musical Groups

Posted by pratyush raj
pratyush raj
7,097 Points

i am not able to remove the last comma from the newly created string(multidimensional list joining)

ithe question in which we have to take a multidimensional list and make them to join together with a comma in seperation

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
s=''
#to=''
print("musical groups:")
for item in musical_groups:
    to=",".join(item)+","
    s=s+to


    #print(to)
print("here:"+s)
pratyush raj
pratyush raj
7,097 Points

i tried all the soultions given in treehouse community after frist list comma is not coming now

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

It looks like you're attempting something different from what the instructions are asking for. In particular:

  • they want each group printed out separately
  • the "print" should be part of the loop
  • you won't need a variable ("s") to accumulate multiple groups in
  • the separator between member names should be both a comma and a space