python-knowledge-patch
Python 3.13+ Knowledge Patch
Claude's baseline knowledge covers Python through 3.12. This skill provides features from 3.13 (Oct 2024) onwards.
Source: Python "What's New" documentation at https://docs.python.org/3/whatsnew/
3.13 Breaking Changes
| Change | Impact |
|---|---|
| 19 "dead battery" modules removed (PEP 594) | ImportError for cgi, crypt, imghdr, telnetlib, etc. See removals |
locals() returns snapshots in functions (PEP 667) |
exec()/eval() in functions need explicit namespace. See new-modules |
TypedDict("T", x=int) keyword syntax removed |
Use class syntax or TypedDict("T", {"x": int}) |
pathlib.Path.glob("**") returns files AND dirs |
Add trailing / for dirs only: glob("**/") |
| Docstring leading whitespace stripped | May affect doctest tests |
3.13 New Features
| Feature | Quick reference |
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