Sure enough it was easier to rewrite in Python! It took less time to rewrite than documenting the Julia problem. Python realizes that sometimes a byte is just a byte, and it can also handle Unicode. And bonus…my memory of processing a directory, was using os.walk(), but found a much easier and straightforward way using os.listdir(dir).
In writing the program I found I needed to change the date format to yyyy-mm-dd. This led me to learning about the simple but useful .zfill() instruction. I had done this manually before. I also need to learn about python’s f-String formatting.