I thought using FindPythonInterp would be more portable than simply invoking "python" directly (i.e. using $PYTHON_EXECUTABLE). However, this does not appear to be the case. I'd be interested to know if this is intentional or if I'm doing something wrong.
I've tried using "find_package(PythonInterp 2.6.0 REQUIRED)" on a variety of systems. The software in question works with any python 2.6 or 2.7 version. On Debian, with the default python 2.7 installed, it picked up python 2.6.8 (from python2.6-minimal) which lacked all the required modules. /usr/bin/python was 2.7 and matched the version requirement, and had all the required modules available. On Windows, with an active virtualenv, it doesn't use the virtualenv python on the path, but an entirely different version without the modules I need available. Similar problems seen for Ubuntu. I think the general problem here is that it tries to be too clever, and tries to find a lower version in preference to a perfectly suitable newer version, and even the version on the path. This includes using virtualenv, where I've carefully gone to the effort of setting up a custom environment for the purpose only to have it be ignored. I would have expected that if the default path contained "python", "python2" or "python2.7", these should all be preferred (in order) over "python2.6" or any autodetected version not on the path, if the version meets the requirement from find_package. The current behaviour gets it wrong in almost every situation except where there's only a single version to choose from! Regards, Roger -- .''`. Roger Leigh : :' : Debian GNU/Linux http://people.debian.org/~rleigh/ `. `' schroot and sbuild http://alioth.debian.org/projects/buildd-tools `- GPG Public Key F33D 281D 470A B443 6756 147C 07B3 C8BC 4083 E800 -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake