Скачать или смотреть How to Assign Values from Variables to List Entries in Python

Learn how to dynamically assign variable values to list entries in Python using string formatting. This step-by-step guide will help you implement it effectively.
---
This video is based on the question https://stackoverflow.com/q/73115691/ asked by the user 'ranjith' ( https://stackoverflow.com/u/10212824/ ) and on the answer https://stackoverflow.com/a/73115707/ provided by the user 'Barmar' ( https://stackoverflow.com/u/1491895/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to assign value from varibles to the enties of list

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Assign Values from Variables to List Entries in Python

When working with lists in Python, you might find yourself wanting to bind or assign variable values directly to specific entries in the list. This might seem like a tricky task at first, but with Python's powerful features, especially string formatting, it becomes quite straightforward. In this guide, we'll tackle a common question: How can I assign values from variables to specific entries in a list?

The Problem

Imagine you have the following variables defined in your code:

[[See Video to Reveal this Text or Code Snippet]]

You also have a list called command that looks like this:

[[See Video to Reveal this Text or Code Snippet]]

Your goal is to assign the values of a, b, and c to the respective entries of entry2, entry3, and entry4. This would mean that:

command[1] should give you entry2=2

command[2] should give you entry3=3

command[3] should give you entry4=1

The Solution

To implement this, we can utilize string formatting. Python provides several ways to format strings, but the most straightforward method for this case is to use f-strings, which were introduced in Python 3.6. They make it easy to embed expressions inside string literals.

Here’s how you can modify your code to achieve the desired result:

[[See Video to Reveal this Text or Code Snippet]]

Breakdown of the Solution

String Formatting with F-Strings:

The f prefix before the string indicates that this is an f-string.

Inside the curly braces {}, you can place the variable names directly. The values of these variables (a, b, c) will be evaluated and inserted into the string.

Resulting Command List:

After executing the above line of code, the command list will be updated to:

[[See Video to Reveal this Text or Code Snippet]]

Final Thoughts

Using f-strings or other string formatting options effectively allows you to dynamically assign values in Python, making your code cleaner and more readable. This technique is especially useful when dealing with configuration parameters, command generation, or any scenario where you need to embed variable values into strings.

Feel free to try this out in your own Python environments and tweak the values of a, b, and c to see how the command list updates accordingly!

Now you know how to assign variable values to list entries in Python. Happy coding!