Re: [CMake] cmake vs. Python 3.4
On 23 Dec 2016 7:58 pm, "Lev" wrote: Hi list, I have this: FIND_PACKAGE(PythonInterp) and cmake finds this: -- Found PythonInterp: /usr/bin/python (found version "2.7.9") However, 3.4 is also installed. How can I specify to find 3.4? If I say: set(Python_ADDITIONAL_VERSIONS 3.4) FIND_PACKAGE(PythonInterp 3 REQUIRED) still no luck. When you did that did you wipe the CMake cache (e.g. delete any existing binary build directory)? In many cases where CMake is asked to find a binary it will create a cache variable if it was found so that on subsequent runs of CMake it doesn't have to search for it again. You may be hitting this. -- 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
[CMake] Fwd: cmake vs. Python 3.4
Ooops, this message was supposed to be "Reply All" -- Forwarded message -- From: Elizabeth A. Fischer Date: Fri, Dec 23, 2016 at 3:28 PM Subject: Re: [CMake] cmake vs. Python 3.4 To: Lev Look for a binary called `python3`, not `python`. See here: https://github.com/citibeth/icebin/blob/develop/cmake/FindPython.cmake The `FindPython.cmake` I shared above also queries the Python system for the correct place to install things. See here for how it's used: https://github.com/citibeth/icebin/blob/develop/pylib/CMakeLists.txt On Fri, Dec 23, 2016 at 2:57 PM, Lev wrote: > Hi list, > > > I have this: > > FIND_PACKAGE(PythonInterp) > > and cmake finds this: > > -- Found PythonInterp: /usr/bin/python (found version "2.7.9") > > However, 3.4 is also installed. How can I specify to find 3.4? > > If I say: > > set(Python_ADDITIONAL_VERSIONS 3.4) > FIND_PACKAGE(PythonInterp 3 REQUIRED) > > still no luck. > > This is on a Debian stable, so > > $ cmake --version > cmake version 3.0.2 > > > Thanks, > Levente > > -- > 73 de HA5OGL > Op.: Levente > -- > > 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/opensou > rce/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake > -- 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
Re: [CMake] cmake vs. Python 3.4
> > Try using the update-alternatives command so that "python" becomes > symbolically linked to python-3.4 rather than python-2.7.9 > > Or uninstall python 2.7.9. > The standard Python distribution for versions 3 or greater installs a binary called `python3`, not `python`. That is the standard. If you are running Python3 from a binary called `python`, that is not standard. I know that distros do this (or can do it with tweaking); but that doesn't make it standard. If you want to be sure you're getting Python3, you should look for a binary called `python3`. Does FindPython not have logic to check the versioned pythonx.y > alternatives when doing these checks? Why isn't it checking the python3 > and python3.x commands in this circumstance? Have you tried the FindPython I referenced above? It would solve the problems you brought to this thread (and maybe even some you didn't yet know you have). -- 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
Re: [CMake] cmake vs. Python 3.4
On Fri, 23 Dec 2016 12:53:30 -0800 (PST) "Alan W. Irwin" wrote: > Try using the update-alternatives command so that "python" becomes > symbolically linked to python-3.4 rather than python-2.7.9 > > Or uninstall python 2.7.9. Ok. Thanks both of you. Merry XMAS, Levente -- 73 de HA5OGL Op.: Levente -- 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
Re: [CMake] cmake vs. Python 3.4
On Friday, December 23, 2016 12:53:30 PM Alan W. Irwin wrote: > On 2016-12-23 20:57+0100 Lev wrote: > > Hi list, > > > > > > I have this: > > > > FIND_PACKAGE(PythonInterp) > > > > and cmake finds this: > > > > -- Found PythonInterp: /usr/bin/python (found version "2.7.9") > > > > However, 3.4 is also installed. How can I specify to find 3.4? > > > > If I say: > > > > set(Python_ADDITIONAL_VERSIONS 3.4) > > FIND_PACKAGE(PythonInterp 3 REQUIRED) > > > > still no luck. > > > > This is on a Debian stable, so > > > > $ cmake --version > > cmake version 3.0.2 > > Try using the update-alternatives command so that "python" becomes > symbolically linked to python-3.4 rather than python-2.7.9 > > Or uninstall python 2.7.9. No. Don't do that. Debian (and its derivatives don't work that way). The way I've done this before (when building for multiple python and python3 versions is to set: PYTHON_EXECUTABLE=/usr/bin/python$v Where $v would, in your case, be 3.4. Scott K -- 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
Re: [CMake] cmake vs. Python 3.4
On 23/12/16 20:53, Alan W. Irwin wrote: On 2016-12-23 20:57+0100 Lev wrote: Hi list, I have this: FIND_PACKAGE(PythonInterp) and cmake finds this: -- Found PythonInterp: /usr/bin/python (found version "2.7.9") However, 3.4 is also installed. How can I specify to find 3.4? If I say: set(Python_ADDITIONAL_VERSIONS 3.4) FIND_PACKAGE(PythonInterp 3 REQUIRED) still no luck. This is on a Debian stable, so $ cmake --version cmake version 3.0.2 Try using the update-alternatives command so that "python" becomes symbolically linked to python-3.4 rather than python-2.7.9 Or uninstall python 2.7.9. This seems a little drastic; I wouldn't expect to have to alter the system for cmake to do what I want. Does FindPython not have logic to check the versioned pythonx.y alternatives when doing these checks? Why isn't it checking the python3 and python3.x commands in this circumstance? Or, give the incompatibility here, do we need a separate FindPython3Interp and equivalents so that we can find Python 2 and 3 version of the executable and libs independently. This is something which has been bugging me for a while since the current behaviour seems somewhat unsatisfactory. Regards, Roger -- 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
Re: [CMake] cmake vs. Python 3.4
On 2016-12-23 20:57+0100 Lev wrote: Hi list, I have this: FIND_PACKAGE(PythonInterp) and cmake finds this: -- Found PythonInterp: /usr/bin/python (found version "2.7.9") However, 3.4 is also installed. How can I specify to find 3.4? If I say: set(Python_ADDITIONAL_VERSIONS 3.4) FIND_PACKAGE(PythonInterp 3 REQUIRED) still no luck. This is on a Debian stable, so $ cmake --version cmake version 3.0.2 Try using the update-alternatives command so that "python" becomes symbolically linked to python-3.4 rather than python-2.7.9 Or uninstall python 2.7.9. Alan __ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __ Linux-powered Science __ -- 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
[CMake] cmake vs. Python 3.4
Hi list, I have this: FIND_PACKAGE(PythonInterp) and cmake finds this: -- Found PythonInterp: /usr/bin/python (found version "2.7.9") However, 3.4 is also installed. How can I specify to find 3.4? If I say: set(Python_ADDITIONAL_VERSIONS 3.4) FIND_PACKAGE(PythonInterp 3 REQUIRED) still no luck. This is on a Debian stable, so $ cmake --version cmake version 3.0.2 Thanks, Levente -- 73 de HA5OGL Op.: Levente -- 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
