In this tutorial, we will explore one of the fundamental aspects of Python programming – how to concatenate two lists. Python, a significant language in the realm of programming, offers numerous methods to tackle this task.
Given that lists is one of the most versatile and commonly used data structures in Python, it’s crucial to understand how to manipulate them effectively, and concatenation is an essential part of this manipulation.
What is concatenation?
In programming, concatenation commonly refers to the process of linking things together in a series or chain. When it comes to Python lists, concatenation involves combining two lists end-to-end to create a new list.
Method 1: Using the ‘+’ Operator
One of the easiest ways to concatenate two lists in Python is by using the ‘+’ operator. This operator, when applied to two lists, combines them into one. Here is an example:
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list1 = [1, 2, 3] list2 = [4, 5, 6] concatenated_list = list1 + list2 |
In the output, we will see the following:
[1, 2, 3, 4, 5, 6]
Method 2: Using the ‘extend()’ Function
Another way to concatenate two lists is by using the ‘extend()’ function. This function adds the elements of one list to the end of another. Here is an example of how to use the ‘extend()’ function:
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list1 = [1, 2, 3] list2 = [4, 5, 6] list1.extend(list2) |
In this case, the output will be:
[1, 2, 3, 4, 5, 6]
So, in this tutorial, we learned two methods of concatenating lists in Python. Here is the full Python code:
The Full Code:
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# Using the '+' operator list1 = [1, 2, 3] list2 = [4, 5, 6] concatenated_list = list1 + list2 print(concatenated_list) # Using the 'extend()' function list1 = [1, 2, 3] list2 = [4, 5, 6] list1.extend(list2) print(list1) |
In both methods, the output will be as follows:
[1, 2, 3, 4, 5, 6] [1, 2, 3, 4, 5, 6]
Conclusion:
Concatenating lists is a fundamental operation in Python, frequently used in various programming scenarios. Now that you’ve acquired these skills, you can efficiently manipulate lists while writing your Python scripts! We hope you found this tutorial useful. Happy programming!