Vid-20220607-wa0021mp4 ★

You can use the re (Regular Expression) module to extract these features instantly from a list of filenames.

0021 (The 21st media file saved on that specific day) How to Programmatically Create Features VID-20220607-WA0021mp4

If you are building a machine learning model or an organized archive, you should break this string into multiple sub-features. Feature Name Media_Type Extracted from the VID prefix Timestamp 2022-06-07 Parsed from YYYYMMDD format Year Useful for long-term trend analysis Month Useful for seasonal patterns Day_of_Week Derived from the date (2022-06-07 was a Tuesday) Source_App Identified by the WA string Daily_Index The unique counter for that day 2. Python Implementation (High-Speed Extraction) You can use the re (Regular Expression) module