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How to Iterate Over a List in Reverse Order in Python


How to Iterate Over a List in Reverse Order in Python ?

Answer

To iterate over a list in Python in reverse order, you can use slicing or the reversed() function.



✐ Examples

1 Iterate Over List in Reverse Using Slicing

In this example,

  1. We create a list named numbers with integer elements.
  2. We use slicing with a negative step (-1) to iterate over the list in reverse order.
  3. Within the loop, we perform operations on each element or print it.

Python Program

numbers = [1, 2, 3, 4, 5]
for number in numbers[::-1]:
    print(number)

Output

5
4
3
2
1

2 Iterate Over List in Reverse Using reversed()

In this example,

  1. We create a list named names with string elements.
  2. We use the reversed() function to iterate over the list in reverse order.
  3. Within the loop, we perform operations on each element or print it.

Python Program

names = ["Alice", "Bob", "Charlie", "David"]
for name in reversed(names):
    print(name)

Output

David
Charlie
Bob
Alice

Summary

In this tutorial, we learned How to Iterate Over a List in Reverse Order in Python language with well detailed examples.




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