Discussões Q&A
def manipulate_data(n):
    positives,negatives=[],[]
    if not isinstance(n,list):
         raise ValueError
        return 
    else:
         for i in n:
         if i>=0:
             positives.append(i)
         if i<0
             negatives.append(i)
         new=[len(positives,sum(negatives)]
     return new.
Someone kindly assist I keep running it in unitests and I keep getting errors.
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