Resolving FileNotFoundError in Python Zip File Encryption

Learn how to fix the `FileNotFoundError` in your Python project when encrypting files and zipping them. This guide breaks down the problem and provides a clear solution. --- This video is based on the question https://stackoverflow.com/q/63504031/ asked by the user 'Edgedancer' ( https://stackoverflow.com/u/12992581/ ) and on the answer https://stackoverflow.com/a/63505298/ provided by the user 'DemonSpawn' ( https://stackoverflow.com/u/10445115/ ) 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: My encryption code can't find a file "FileNotFoundError: [Errno 2] No such file or directory: 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. --- Troubleshooting FileNotFoundError in Python File Encryption In the world of programming, encountering errors can be a common hurdle, especially when dealing with file manipulations. If you are working on a Python project that involves encrypting files and compressing them into a ZIP archive, you might have stumbled upon a frustrating error: FileNotFoundError: [Errno 2] No such file or directory: file. Let's break down this issue and provide a clear solution. Understanding the Problem You’re likely trying to encrypt files located in a specific directory and then add them to a ZIP file. The issue arises when you reference the filenames without the full path. When encrypting, the code attempts to open a file using only its name instead of its complete path, leading to the FileNotFoundError. Scenario Breakdown: Folder Structure: You traverse directories looking for files. File Handling: When you attempt to read a file using just its name, Python fails to locate it, raising an error. Encryption Function: The function needs to locate the file with the correct path to perform the encryption. Solution: Using the Correct File Path To solve this issue, you need to ensure that you are providing the full path of the file in the encryption function. Here is how you can effectively structure your code to avoid this error: Updated Code Example Modify the File Reference in the Loop: Instead of using just the filename, concatenate the directory path with the filename using os.path.join. Here’s how you can modify your code: [[See Video to Reveal this Text or Code Snippet]] Key Adjustments Made Concatenate Path: Use os.path.join(folderName, filename) to create the full path of the file. Pass Complete Path: Pass the complete file path to the encrypt function. Zip Addition: When adding to the zip file, you can specify arcname=filename to maintain the original file names inside the archive. Conclusion By modifying how you handle the filenames in your encryption method, you can resolve the FileNotFoundError seamlessly. Always ensure that you are working with the complete file paths when accessing files in different directories. This method not only resolves the current issue but also makes your code more robust against similar errors in the future. If you have any further questions or need additional support on file management in Python, feel free to reach out!