Fix title header (ReactiveX#744)

RxPY v5 (ReactiveX#743)

* Add back fluent method chaining

* Add windowing operators

* Add more tests

* Formatting

* Update deps

* Update docs

* Curry flip

* Use curry-flipping operators

* Better generic types

* Format test files with ruff

Apply ruff formatting to all test files as Stage 0 of the test linting
enablement plan. This separates formatting changes from type annotation
work for cleaner diffs and easier review.

Changes:
- 19 files reformatted (mainly removing unnecessary line breaks)
- 167 files already formatted (no changes)
- All tests still pass

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Update ruff configuration for staged test linting

Replace blanket "tests" exclusion with specific directory exclusions
matching the pyright configuration. This aligns both tools and makes
the staged rollout plan clearer.

Changes:
- Remove generic "tests" from ruff exclude list
- Add specific test directories to exclude
- Both ruff and pyright now have identical test exclusions
- Will remove exclusions incrementally as each stage completes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Support Python 3.11, 3.12 and 3.13 (ReactiveX#733)

Co-authored-by: Dag Brattli <dag@brattli.net>

v1.6.2

Allow any python in the 3.x series >=3.7

Before converting from setup.py, this upper bound didn't exist.

There's no reason to cap at 3.10. This breaks installations on other poetry projects defined with Python=^3.7 and would force updating this file for every new python version.

Fix code format

Use deque in ReplaySubject (ReactiveX#646)

fix: make package name all lowercase

fix(examples) fixes timeflies_tkinter

- User `from_` not `of`

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