v1.9.1

• Fixed an issue where calling CMake with -DPython_EXECUTABLE=<system_python> created conflicts with the embedded Python (either a loud version error, or silently passing the wrong library paths). Some IDEs would pass this flag implicitly and it would hijack the find_package(Python) call used internally by this recipe. Now, we specifically protect against this since there should be no traces of system Python in a project that wishes to embed it.
• Provided an alternative to embedded_python_tools.symlink_import(). For dev builds, it's now possible to point PyConfig::home to the contents of bin/.embedded_python(-core).home to avoid needing to copy the entire Python environment into the build tree every time the project is reconfigured.

v1.9.0

• Added support for Conan v2.
• Added support for Python 3.12.
• Updated default recipe options to pip v24.0, setuptools v69.5.1, wheel v0.43.0, and pip-licenses v4.4.0 for compatibility with Python 3.12.
• Dropped support for Python versions older than 3.11.5 in order to avoid maintaining both openssl v1 and v3.
• Removed the obsolete openssl_variant option.
• Removed redundant embedded_python:version option. Use embedded_python-core:version.

v1.8.2

• Fixed a packaging error on Linux in case the bin directory was not created during build.
• Fixed openssl and zlib version compatibility by requiring version ranges instead of exact versions.

v1.8.1

• Fixed packaging and runtime errors caused by conflicts with an incompatible system Python installation or pip packages installed in the user's home directory. The embedded Python now always runs in isolated mode regardless of command line flags.
• Fixed packaging error on Windows when the Conan cache path contains spaces.
• Fixed Python include dirs being added twice (didn't cause any issues, just noise on the command line).
• Fixed openssl v3 mistakenly being enabled for Python 3.10. While 3.10 has preliminary support for openssl v3, Python 3.11 is the real minimum requirement for full support.
• Bumped default openssl to 1.1.1w for Python < 3.11 and v3.1.2 for Python >= 3.11.

v1.8.0

• Added support for building with openssl v3 for Python 3.10 and newer.
• openssl v3.0.8 is now the default for Python >= 3.10 and openssl v1.1.1u is the default for Python 3.9.
• The openssl_variant is now obsolete. The flag is still there for backwards compatibility but it no longer does anything.
• The EmbeddedPython_EXECUTABLE CMake variable is now defined and points to the executable that's aware of the full embedded Python environment with pip packages. Python_EXECUTABLE points to the core executable that's only aware of the standard library. This split ensures that we compile and link against core in order to avoid rebuilding the world when only the Python environment packages change but the version/headers/libs stay the same.

v1.7.0

• Recipe build performance and Conan cache usage have been improved further (on top of the improvements in v1.6.0) by optimizing the way licenses are gathered. The recipe now takes advantage of a new feature in pip-license v4.2.0 to gather licenses from an external environment. This way, we don't need to re-install packages just to gather licenses, thus cutting both build time and Conan cache usage in half.
• Reduced package size for Python >= 3.10 on macOS and Linux by removing the libpython*.a static library. This brings these platforms in line with the existing package for Windows. Only shared libraries are included.

v1.6.0

• Added support for Python 3.11 and set minimum supported Python version to 3.9.8.
• Recipe build performance has been improved significantly and Conan cache usage has been reduced:
  • In cases where only the packages option changes, the recipe no longer requires CPython to be re-compiled (Linux, macOS) or re-downloaded (Windows) every single time. Instead, we take advantage of the Conan cache: the new embedded_python-core package contains all baseline binaries (without any pip packages). embedded_python builds on top of -core by adding the pip packages and can reuse any compatible -core package from the cache.
  • The Python packages are now installed directly into the package folder instead of going via the build folder. This speeds up the packaging and reduces space usage since there's no more file duplication.
  • With Python >= 3.11, the recipe now makes use of the new ./configure --disable-test-modules option to avoid building and packaging CPython's internal tests.
  • On macOS and Linux, the Python standard library is now stored in a .zip file to reduce package size (as was already the case on Windows). This is controlled by the embedded_python-core:zip_stdlib option which can have the values of no, stored, or delflated.
• Updated default recipe options to pip v23.1.2, setuptools v67.8.0, and wheel v0.40.0 to improve compatibility with the latest PyPI packages.
• Updated default pip_licenses_version to v4.3.2 for compatibility with Python 3.11.
• Fixed a bug where deleting the recipe build folder would make the package unusable because the package folder accidentally contained symlinks to files in the build folder.
• Fixed a bug on Windows where pip install would fail for packages that needed to build a wheel from source (e.g git requirements).
• Fixed a bug on Windows where embedded_python_tools would fail when the source and destination were on different network drives. It will now fall back to files.copy() in case CreateJunction() is not possible.

v1.5.4

• Removed the only usage of deprecated attribute deps_cpp_info of Conanfile from embedded_python_tools.py.

v1.5.3

• Fixed a bug where the Python version would be incorrectly cached between builds as the Conan source method is only called once.

v1.5.2

• Added a list of all installed packages to licenses/packages.txt.
• Fixed executable's hardcoded search path for libpython on macOS.