Скачать или смотреть How to Merge Two Lists in Python: Combining Integers and Strings

Discover how to effectively merge lists containing `integers` and `strings` in Python, producing a new list that meets your needs!
---
This video is based on the question https://stackoverflow.com/q/70749812/ asked by the user 'zhiruiwang' ( https://stackoverflow.com/u/17960284/ ) and on the answer https://stackoverflow.com/a/70749912/ provided by the user 'kpie' ( https://stackoverflow.com/u/2334254/ ) 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 merge two lists, each list contains integer and strings, and I need to do the calculation to get a new 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 Merge Two Lists in Python: Combining Integers and Strings

In the world of programming, working with lists is a common task. When you're practicing Python, you may encounter scenarios where you need to merge two lists that consist of both integers and strings. This can become tricky, especially when you want to ensure that the output meets specific requirements. In this guide, we’ll walk through a problem presented by a user and explore an effective solution for merging such lists.

The Problem

The user had the following two lists in Python:

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

The desired output was a new list that combined both lists in a specific way:

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

However, when the user attempted to merge the lists using different methods, the results were not as expected:

Using zip:

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

Using set:

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

The output wasn't what they intended, leaving them unsure of how to achieve the desired result.

The Solution

Let's break down a clear solution to achieve the intended list. The approach we'll take involves iterating through both lists, handling integers and strings differently, and ensuring we don't duplicate entries in the final output.

Step-by-step Implementation

Define the function: We'll create a function called merge which takes two lists as parameters.

Initialize an empty result list: This will store the merged values.

Use zip to combine both lists: This allows us to process corresponding elements of the input lists simultaneously.

Handling each element: We will append values to the result based on their type:

If both elements are integers, sum them and convert back to string.

If both elements are strings or different types, append both sequentially.

Remove duplicates: Convert the result to a set and back to a list to eliminate duplicates.

Sort and convert types: Finally, sort the list and ensure numbers are represented as integers where possible.

Example Code

Here is the complete code implementation based on the above logic:

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

Output

When you run the above code, you will get:

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

This matches the desired result you've been looking for!

Conclusion

Merging lists containing integers and strings in Python requires careful handling of different data types. By following the structured approach detailed above, you can successfully create a new list that combines the values from both input lists while adhering to your requirements. Remember, understanding the type of data you’re working with is vital for achieving the desired results.

If you have any further questions or need assistance with your Python programming endeavors, feel free to reach out or leave a comment below!