input: def removeDuplicates(input): 
      """ Remove duplicate entries from a given list and return a new list with unique elements.
      >>> removeDuplicates([1, 2, 2, 3, 3, 4])
      [1, 2, 3, 4]
      """
      final_list = [] 
      for num in input: 
          if num not in final_list: 
              final_list.append(num) 
      return final_list 
  
  lst = [1, 2, 2, 3, 3, 4]
  print(removeDuplicates(lst))
output:     final_list = [] 
      for num in input: 
          if num not in final_list: 
              final_list.append(num) 
      return final_list