In this tutorial, you’ll learn how to add a number to all elements in a list using Python. This is a common operation in data processing tasks where you might need to update multiple values in an iterable, such as a list. We’ll be using Python’s list comprehensions to accomplish this.
Step 1: Creating a List
Let’s start by creating a list of numbers. We’ll use this list to demonstrate how one might add a fixed number to each element in it.
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initial_list = [1, 2, 3, 4, 5] print(initial_list) |
This will create and print a list of the first five natural numbers.
Step 2: Adding a Number to All Elements
We will add a number to all elements in a list using Python’s list comprehension – a concise way to create lists. In this example, we’re going to add 10 to all elements in the list we created in step 1.
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new_list = [i + 10 for i in initial_list] print(new_list) |
Full Code:
Here is the complete Python code from the above steps:
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initial_list = [1, 2, 3, 4, 5] print(initial_list) new_list = [i + 10 for i in initial_list] print(new_list) |
Conclusion
Learning to work with lists is vital in Python as it allows you to handle large datasets and perform operations on them efficiently. In this tutorial, you have learned how to add a number to every element in a list using list comprehension.
This approach can also be used to perform other operations such as subtraction, multiplication, etc. Hope this tutorial was helpful and encourages you to explore more of Python’s versatile functionalities.