I watched a YouTube video about programming books. He showed the 1st K&R C programming book, which I have. And a later O’Reilly Learning Python book, which I also have the 1st edition. Also I always seem to remember in my beginning, using Python 1.5 something. And the last image below is what this book is based on.
I do have old Python programs with file dates in 1999, an if they did file I/O they used Windows files… c:/My Documents/something.txt. I was using Windows a lot back then.