python removal of duplicate entries in list and print output of unique list - 


def rem_dups():     output = []     inpt = [1, 2, 3, 4, 1, 2, 3, 4, 5, 6]         x in inpt:             if x not in output:             output.append()     return output

so trying figure out how use function above 2 vars(output/input) input has list of numbers , output empty @ end should have list of unique numbers excluding dup in inpt list. when run program getting "process finished exit code 0 " believe means program executed not seeing output return output @ end of script. appreciated.

there 3 problems code.

  1. you have call function in order see output. add print(rem_dups()) @ end.

  2. when do, typeerror because not pass append method. change output.append(x)

  3. the algorithm use o(k*k) k number of unique entries, because of linear search in x not in output. unnecessarily slow , bite large inputs. let assume want output list order preserved.

here fix.

def rem_dups():     output = []     uniques = set()     inpt = [1, 2, 3, 4, 1, 2, 3, 4, 5, 6]     x in inpt:         if x not in uniques:             uniques.add(x)             output.append(x)     return output  print(rem_dups())

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