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 ...
BetaNews

Python 3.15 arrives with lazy imports, UTF-8 by default and a faster JIT

Python 3.15 reached stable status on Oct. 9, 2026, according to its official release page. Its headline changes put UTF-8 in charge of text encoding by default and introduce an opt-in lazy keyword for ...
LWN.net

Python 3, ASCII, and UTF-8

The dreaded UnicodeDecodeError exception is one of the signature "features" of Python 3. It is raised when the language encounters a byte sequence that it cannot ...
Phoronix

Python 3.15 Released With Experimental JIT Compiler Running Faster

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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 ...