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Python Introducing Lists Build an Application Multidimensional Musical Groups

nikel Hayo
nikel Hayo
1,943 Points
Posted by nikel Hayo
nikel Hayo
1,943 Points

how can i get rid of the first comma?

I am trying to solve this quiz with the least amount of code, but I could not figure out to make the loop without creating first comma. I do not want to delete first comma after output,as it will make the code complicated . Is there any way to re-write this code as simple as possible, directly giving the requested output?

this is the result of my code:

, 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

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 in musical_groups:
    joined_member=""
    for member in group:
            joined_member=joined_member+ ", " + member
    print(joined_member)

2 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

You don't need an inner loop, just use the "join" method on each group. It only places delimiters between the items joined:

    print(", ".join(group))
nikel Hayo
nikel Hayo
1,943 Points
nikel Hayo
nikel Hayo
1,943 Points

Thanks Steven it is amazing how simple the solutions are at python . At which course was this join method explained? I somehow missed that.

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

In the course you are taking now, the previous stage has a video titled Split and Join.