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How to Join Lists in Python


How to Join Lists in Python ?

Answer

To join lists in Python, you can use the `+` operator or the `extend` method to combine multiple lists into a single list.



✐ Examples

1 Join Two Lists of Integers

In this example,

  1. We create two lists named list1 and list2 with integer values.
  2. We use the + operator to join list1 and list2 into a new list named joined_list.
  3. Finally, we print the joined list to verify the result.

Python Program

list1 = [1, 2, 3]
list2 = [4, 5, 6]
joined_list = list1 + list2
print(f"Joined List: {joined_list}")

Output

Joined List: [1, 2, 3, 4, 5, 6]

2 Join Multiple Lists of Strings

In this example,

  1. We create three lists named listA, listB, and listC with string values.
  2. We create a new list named result_list and use the extend method to add all elements from listA, listB, and listC to result_list.
  3. Finally, we print the joined list to verify the result.

Python Program

listA = ["apple", "banana"]
listB = ["cherry", "date"]
listC = ["fig", "grape"]
result_list = []
result_list.extend(listA)
result_list.extend(listB)
result_list.extend(listC)
print(f"Joined List: {result_list}")

Output

Joined List: ['apple', 'banana', 'cherry', 'date', 'fig', 'grape']

Summary

In this tutorial, we learned How to Join Lists in Python language with well detailed examples.




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