Python prorgam to remove duplicate elements index from other list

PythonServer Side ProgrammingProgramming

When it is required to remove duplicate elements index from other list, the ‘enumerate’ attribute, the list comprehension and a simple iteration are used.

Example

Below is a demonstration of the same

my_list_1 = [4, 5, 6, 5, 4, 7, 8, 6]
my_list_2 = [1, 7, 6, 4, 7, 9, 10, 11]

print("The first list is :")
print(my_list_1)
print("The second list is :")
print(my_list_2)

temp_set = set()
temp = []

for index, value in enumerate(my_list_1):
   if value not in temp_set:
      temp_set.add(value)
   else:
      temp.append(index)

my_result = [element for index, element in enumerate(my_list_2) if index not in temp]

print("The result is :")
print(my_result)

Output

The first list is :
[4, 5, 6, 5, 4, 7, 8, 6]
The second list is :
[1, 7, 6, 4, 7, 9, 10, 11]
The result is :
[1, 7, 6, 9, 10]

Explanation

  • Two lists of integers is defined and is displayed on the console.
  • An empty set is created and defined as ‘temp_set’.
  • An empty list is created and defined as ‘temp’.
  • The first list is iterated over using ‘enumerate’ attribute, and the elements of the first list are compared with the elements of the second list.
  • If they match, the element is stored in a list.
  • A list comprehension is used to iterate over the elements of second list and check if enumeration of elements of second list are present in the newly created list.
  • It is converted to a list.
  • This is assigned to a variable.
  • This is displayed as output on the console.
raja
Published on 16-Sep-2021 08:26:14
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