Python 3.15 defaults to UTF-8 for character encoding. Changes on Windows

On October 9, 2026, Python 3.15.0 was released. When opening a file with open() without specifying a character encoding, it ...

Handling CSV Character Encoding, Dates, and Numbers Correctly: A Practical Introduction to Python

When you start working with CSVs in Python, almost everyone hits the same wall. It looks garbled when opened in Excel. Dates remain as strings and cannot be calculated. You get an error when trying to ...