How do I install the Nevaberry Nevaberry Plugins Python Knowledge Patch skill?

Run npx get-skill add tomevault-io/nevaberry-nevaberry-plugins-python-knowledge-patch in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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Nevaberry Nevaberry Plugins Python Knowledge Patch by tomevault-io

Name: Nevaberry Nevaberry Plugins Python Knowledge Patch
Author: tomevault-io

File contents

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
Free-threaded CPython (PEP 703)	`python3.13t`, `sys._is_gil_enabled()`, `PYTHON_GIL=0`. See concurrency
`copy.replace()` protocol	`copy.replace(obj, field=val)`, implement `__replace__()`. See new-modules
`warnings.deprecated()` (PEP 702)	`@deprecated("msg")` — runtime warning + type checker signal. See new-modules

3.14 New Syntax

Feature	Quick reference
T-strings (PEP 750)	`t"Hello {name}"` → `Template` object. `from string.templatelib import Template, Interpolation`. See new-syntax
Deferred annotations (PEP 649/749)	Forward refs no longer need quotes. `from annotationlib import get_annotations, Format`. See new-syntax
`except` without brackets (PEP 758)	`except A, B:` (no parens, no `as`). Parens still needed with `as`.

3.14 New Modules

Module	Quick reference
`compression.zstd` (PEP 784)	`from compression import zstd; zstd.compress(data)`. See new-modules
`concurrent.interpreters` (PEP 734)	Subinterpreters + `InterpreterPoolExecutor`. See concurrency
`annotationlib`	`get_annotations(obj, format=Format.FORWARDREF)`
`functools.Placeholder`	`partial(func, Placeholder, fixed_arg)` — reserve positional slots

3.14 Breaking Changes

Change	Impact
`asyncio.get_event_loop()` raises `RuntimeError`	Must use `asyncio.run()` or `asyncio.Runner`
`multiprocessing` default → `'forkserver'` on Linux	May cause pickling errors; use `get_context('fork')`
`int()` no longer uses `__trunc__()`	Must implement `__int__()` or `__index__()`
`functools.partial` is method descriptor	Wrap in `staticmethod()` for classes
`from __future__ import annotations` deprecated	Unchanged behavior; removal after 2029
`ast.Num`/`Str`/`Bytes` removed	Use `ast.Constant`
`asyncio` child watcher classes removed	Use `asyncio.run()`
SyntaxWarning in `finally` (PEP 765)	`return`/`break`/`continue` in `finally` now warns

3.14 New APIs

API	Quick reference
`sys.remote_exec(pid, script)` (PEP 768)	Attach debugger to running process; `python -m pdb -p PID`. See new-modules
`io.Reader` / `io.Writer`	Simpler protocol alternatives to `typing.IO`
`uuid.uuid7()`	Time-ordered UUID (RFC 9562); also `uuid6()`, `uuid8()`
`heapq.*_max()`	`heapify_max()`, `heappush_max()`, `heappop_max()`, etc.
Free-threading (PEP 779)	Now officially supported; 5-10% overhead

Reference Files

For detailed patterns, code examples, and migration guidance, consult:

references/new-syntax.md — T-strings (template processors, API), deferred annotations (annotationlib), except without brackets
references/new-modules.md — compression.zstd, functools.Placeholder, copy.replace(), warnings.deprecated(), locals() semantics, remote debugging, io.Reader/Writer, uuid.uuid7(), heapq max-heap
references/concurrency.md — Free-threaded CPython (GIL-free mode), subinterpreters, InterpreterPoolExecutor
references/removals.md — Dead batteries (19 modules), 3.13/3.14 removals, breaking behavior changes

Converted and distributed by TomeVault — claim your Tome and manage your conversions.

---name: nevaberry-nevaberry-plugins-python-knowledge-patchdescription: Python 3.13+ Knowledge Patch---# Python 3.13+ Knowledge PatchClaude'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](references/removals.md) || `locals()` returns snapshots in functions (PEP 667) | `exec()`/`eval()` in functions need explicit namespace. See [new-modules](references/new-modules.md) || `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 ||---------|----------------|| Free-threaded CPython (PEP 703) | `python3.13t`, `sys._is_gil_enabled()`, `PYTHON_GIL=0`. See [concurrency](references/concurrency.md) || `copy.replace()` protocol | `copy.replace(obj, field=val)`, implement `__replace__()`. See [new-modules](references/new-modules.md) || `warnings.deprecated()` (PEP 702) | `@deprecated("msg")` — runtime warning + type checker signal. See [new-modules](references/new-modules.md) |## 3.14 New Syntax| Feature | Quick reference ||---------|----------------|| T-strings (PEP 750) | `t"Hello {name}"` → `Template` object. `from string.templatelib import Template, Interpolation`. See [new-syntax](references/new-syntax.md) || Deferred annotations (PEP 649/749) | Forward refs no longer need quotes. `from annotationlib import get_annotations, Format`. See [new-syntax](references/new-syntax.md) || `except` without brackets (PEP 758) | `except A, B:` (no parens, no `as`). Parens still needed with `as`. |## 3.14 New Modules| Module | Quick reference ||--------|----------------|| `compression.zstd` (PEP 784) | `from compression import zstd; zstd.compress(data)`. See [new-modules](references/new-modules.md) || `concurrent.interpreters` (PEP 734) | Subinterpreters + `InterpreterPoolExecutor`. See [concurrency](references/concurrency.md) || `annotationlib` | `get_annotations(obj, format=Format.FORWARDREF)` || `functools.Placeholder` | `partial(func, Placeholder, fixed_arg)` — reserve positional slots |## 3.14 Breaking Changes| Change | Impact ||--------|--------|| `asyncio.get_event_loop()` raises `RuntimeError` | Must use `asyncio.run()` or `asyncio.Runner` || `multiprocessing` default → `'forkserver'` on Linux | May cause pickling errors; use `get_context('fork')` || `int()` no longer uses `__trunc__()` | Must implement `__int__()` or `__index__()` || `functools.partial` is method descriptor | Wrap in `staticmethod()` for classes || `from __future__ import annotations` deprecated | Unchanged behavior; removal after 2029 || `ast.Num`/`Str`/`Bytes` removed | Use `ast.Constant` || `asyncio` child watcher classes removed | Use `asyncio.run()` || SyntaxWarning in `finally` (PEP 765) | `return`/`break`/`continue` in `finally` now warns |## 3.14 New APIs| API | Quick reference ||-----|----------------|| `sys.remote_exec(pid, script)` (PEP 768) | Attach debugger to running process; `python -m pdb -p PID`. See [new-modules](references/new-modules.md) || `io.Reader` / `io.Writer` | Simpler protocol alternatives to `typing.IO` || `uuid.uuid7()` | Time-ordered UUID (RFC 9562); also `uuid6()`, `uuid8()` || `heapq.*_max()` | `heapify_max()`, `heappush_max()`, `heappop_max()`, etc. || Free-threading (PEP 779) | Now officially supported; 5-10% overhead |## Reference FilesFor detailed patterns, code examples, and migration guidance, consult:- **[`references/new-syntax.md`](references/new-syntax.md)** — T-strings (template processors, API), deferred annotations (`annotationlib`), `except` without brackets- **[`references/new-modules.md`](references/new-modules.md)** — `compression.zstd`, `functools.Placeholder`, `copy.replace()`, `warnings.deprecated()`, `locals()` semantics, remote debugging, `io.Reader`/`Writer`, `uuid.uuid7()`, `heapq` max-heap- **[`references/concurrency.md`](references/concurrency.md)** — Free-threaded CPython (GIL-free mode), subinterpreters, `InterpreterPoolExecutor`- **[`references/removals.md`](references/removals.md)** — Dead batteries (19 modules), 3.13/3.14 removals, breaking behavior changes---> Converted and distributed by [TomeVault](https://tomevault.io/claim/nevaberry) — claim your Tome and manage your conversions.

Frequently asked questions

Nevaberry Nevaberry Plugins Python Knowledge Patch