How to Extract Relevant Paths from glob Results in Python скачать в хорошем качестве

How to Extract Relevant Paths from glob Results in Python

Discover a straightforward method to get just the portion of file paths returned by `glob` in Python, particularly useful for working with nested directory structures. --- This video is based on the question https://stackoverflow.com/q/73727661/ asked by the user 'unalignedmemoryaccess' ( https://stackoverflow.com/u/3716664/ ) and on the answer https://stackoverflow.com/a/73727693/ provided by the user 'AKX' ( https://stackoverflow.com/u/51685/ ) 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: return found path in glob 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 Extract Relevant Paths from glob Results in Python When working with files in Python, the glob module is a powerful tool that helps you find all pathnames matching a specified pattern. However, if you're diving deep into a directory structure with many subfolders and files, you might only need a specific part of the returned paths. For instance, if you run a command like glob('path/to/my/**/*.json', recursive=True), it returns full paths, which can be verbose. In many cases, you may want to retrieve only the portion of the paths that comes after a specific part—in this case, after the double asterisks (**). The Challenge Consider the use of glob like this: [[See Video to Reveal this Text or Code Snippet]] The output may look like this: [[See Video to Reveal this Text or Code Snippet]] However, what if you only want: [[See Video to Reveal this Text or Code Snippet]] The question is: How can you achieve this extraction? The Solution The good news is that you can achieve this easily using two simple functions from the os.path module: os.path.commonprefix and os.path.relpath. Let’s break this down step-by-step. Step 1: Use glob to Retrieve Paths First, you will need to run the glob command to get all the paths. For example: [[See Video to Reveal this Text or Code Snippet]] Step 2: Identify the Common Prefix Next, use os.path.commonprefix to determine the common part of all your paths. This will help in constructing relative paths later. [[See Video to Reveal this Text or Code Snippet]] Step 3: Extract Relative Paths with os.path.relpath Finally, employ os.path.relpath to get the paths relative to the common prefix determined in the previous step. This will strip away the part that you don’t need: [[See Video to Reveal this Text or Code Snippet]] Complete Example Here’s how everything comes together in a complete solution: [[See Video to Reveal this Text or Code Snippet]] Conclusion With this method, you can seamlessly extract just the part of the paths you need, filtering out unnecessary prefixes. Utilizing os.path.commonprefix and os.path.relpath, you maintain a clean and readable list of paths derived from your glob command. This approach is particularly beneficial for projects with complex directory structures where clarity is key. Now, the next time you work on a Python project involving file paths, remember this technique to make your code more efficient and organized. Happy coding!