How to Add a List Inside a List in a Python JSON File

Learn how to enrich your Python JSON data by adding a list within a list when pulling information using Beautiful Soup. --- This video is based on the question https://stackoverflow.com/q/74403635/ asked by the user 'NewPartizal' ( https://stackoverflow.com/u/18002913/ ) and on the answer https://stackoverflow.com/a/74403944/ provided by the user 'Vinay Bharadhwaj' ( https://stackoverflow.com/u/8341461/ ) 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 can I add list inside list in python json file? 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. --- Adding a List Inside a List in a Python JSON File When working with JSON data in Python, you might find yourself in a situation where you need to organize your information in a more structured way. This often includes incorporating lists within lists. In this guide, we'll dive into how you can add a list inside a list while extracting data using Beautiful Soup, a popular web-scraping library in Python. Understanding the Problem Let's say you are scraping idioms from a website and organizing them into a JSON format. You have a list of letters (A to W), and you want to structure the idioms based on each letter, so that each letter corresponds to a list of idioms. For example, after scraping the data, you would like your JSON output to look something like this: [[See Video to Reveal this Text or Code Snippet]] As you can see, each list of idioms under its corresponding letter forms a nested structure. The Solution Step 1: Create a Temporary Variable To achieve the nested list format, the first thing you will need to do is create a temporary list for each letter in your main loop. This allows you to store all idioms associated with that letter before appending them to your final data structure. Here’s the revised snippet of your code where you add the tempdata variable: [[See Video to Reveal this Text or Code Snippet]] Step 2: Append to Temporary Variable Next, instead of appending each idiom directly to your data list, you will append each idiom to this temporary list. Modify your inner loop to look like this: [[See Video to Reveal this Text or Code Snippet]] Step 3: Add Temporary Data to Main List After you've gathered all idioms for that specific letter, it's time to insert this temporary list into your main data structure. After the inner loop (the one that processes idioms) is completed for each letter, add the tempdata to the data structure in the following way: [[See Video to Reveal this Text or Code Snippet]] Complete Example Here is how the complete modified code will look: [[See Video to Reveal this Text or Code Snippet]] Conclusion Understanding how to structure your data properly is crucial for effective data management in Python. With the above steps, you can successfully add a list inside a list to your JSON output from web-scraped data. Happy coding!