* fix: avoid really slow compile on emscripten

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* Update tools/pybind11Common.cmake

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Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* ci: add more versions of numpy/scipy/pypy

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* Apply suggestions from code review

* style: pre-commit fixes

* Update requirements.txt

* Update requirements.txt

* Apply suggestions from code review

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Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

…rt (google#4941)

* fix(cmake): findpython issues and 3.12 support for pybind11_find_import

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* Update pybind11NewTools.cmake

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Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* pybind11.pc: use pcfiledir for relative destinations

If the datarootdir is absolute, just use the absolute path directly.
However, if it is relative, we can compute the prefix from the location
of the `.pc` file itself. This allows the install to be relocatable.

* chore: use 3.20's cmake_path if available

* style: pre-commit fixes

* Update CMakeLists.txt

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Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Bumps [deadsnakes/action](https://github.com/deadsnakes/action) from 3.0.1 to 3.1.0.
- [Release notes](https://github.com/deadsnakes/action/releases)
- [Commits](deadsnakes/action@v3.0.1...v3.1.0)

---
updated-dependencies:
- dependency-name: deadsnakes/action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

)

* Enable `bind_map` with `using` declarations.

* style: pre-commit fixes

* Enable directives in bind_vector

* Add tests for bind_ and using directives

* style: pre-commit fixes

* Remove C++17 functions

* Fix test comment

* Add minimal user like map py test

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>