enable usage of new FindPython modules

[planetmarshall]

Specify library name and version: pybind11/2.6.2

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• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

This minor change enables the use of the new FindPython modes in CMake as per the pybind11 documentation.

The FindPythonLibsNew.cmake file is included by pybind11Install indirectly depending on whether the new mode is used.

[ghost]

I detected other pull requests that are modifying pybind11/all recipe:

• Added components to fix pybind11 #4445

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[conan-center-bot]

All green in build 1 (e9547247b568236463d7b698d27013e63fb4f995):

• pybind11/2.4.3@:
  All packages built successfully! (All logs)

• pybind11/2.5.0@:
  All packages built successfully! (All logs)

• pybind11/2.6.0@:
  All packages built successfully! (All logs)

• pybind11/2.6.1@:
  All packages built successfully! (All logs)

• pybind11/2.6.2@:
  All packages built successfully! (All logs)

[prince-chrismc]

These changes are listed for very recent versions of CMake which Conan does not support, is there a particular issue that you are trying to solve that requires this change?

[planetmarshall]

These changes are listed for very recent versions of CMake which Conan does not support, is there a particular issue that you are trying to solve that requires this change?

We were already using the new FindPython support in an internal project, so it made sense to only use one method of finding the Python libraries. I also found it to be more reliable in the various different Python environments to be found on CI systems and local development machines.

FindPythonInterp and FindPythonLibs are deprecated in CMake as of 3.12

[uilianries]

FindPythonLibsNew.cmake is there because one reason: #464 (comment)

I would suggest adding a new option (which doesn't affect the package ID), including or FindPythonLibsNew into cpp_info, but keep as True by default.

Your propose is legit, but not all users can run new Cmake versions.

[conan-center-bot]

All green in build 2 (e9547247b568236463d7b698d27013e63fb4f995):

• pybind11/2.4.3@:
  All packages built successfully! (All logs)

• pybind11/2.5.0@:
  All packages built successfully! (All logs)

• pybind11/2.6.0@:
  All packages built successfully! (All logs)

• pybind11/2.6.1@:
  All packages built successfully! (All logs)

• pybind11/2.6.2@:
  All packages built successfully! (All logs)

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[danimtb]

I believe this has been adressed in #4445