Directory for Python installation?

[19yc93]

Hello,

I am trying to install the Python module under Linux. I have installed Python with the Anaconda distribution.

I don't know how to set up the following under CMake:

PYTHON_EXECUTABLE

PYTHON_INCLUDE_DIR

PYTHON_LIBRARY

PYTHON_LIBRARY_DEBUG

PYTHON_LIBRARY_RELEASE

Can anybody help?

Thanks

[19yc93]

In Cmake-GUI I was able to successfully press "Configure" without error messages.

My configuration was the following:

PYTHON_EXECUTABLE: /home/my_username/anaconda3/bin/python3.6

PYTHON_INCLUDE_DIR: /home/my_username/anaconda3/include

PYTHON_LIBRARY: /home/my_username/anaconda3/lib/libpython3.6m.so

PYTHON_LIBRARY_DEBUG: empty

PYTHON_LIBRARY_RELEASE: empty

After that I switched in terminal to my build directory and I started with "sudo make", but after 98% it aborted with the following message:

Scanning dependencies of target _ChronoEngine_python_core
[ 98%] Building CXX object src/chrono_python/CMakeFiles/_ChronoEngine_python_core.dir/__/__/swig/ChModuleCorePYTHON_wrap.cxx.o
/opt/chrono/build/swig/ChModuleCorePYTHON_wrap.cxx:174:21: fatal error: Python.h: Datei oder Verzeichnis nicht gefunden
compilation terminated.
src/chrono_python/CMakeFiles/_ChronoEngine_python_core.dir/build.make:70: die Regel für Ziel „src/chrono_python/CMakeFiles/_ChronoEngine_python_core.dir/__/__/swig/ChModuleCorePYTHON_wrap.cxx.o“ scheiterte
make[2]: *** [src/chrono_python/CMakeFiles/_ChronoEngine_python_core.dir/__/__/swig/ChModuleCorePYTHON_wrap.cxx.o] Fehler 1
CMakeFiles/Makefile2:346: die Regel für Ziel „src/chrono_python/CMakeFiles/_ChronoEngine_python_core.dir/all“ scheiterte
make[1]: *** [src/chrono_python/CMakeFiles/_ChronoEngine_python_core.dir/all] Fehler 2
Makefile:160: die Regel für Ziel „all“ scheiterte
make: *** [all] Fehler 2

On line 3 "Datei oder Verzeichnis nicht gefunden" means "file or directory not found".

I would be grateful if anybody could help me out ;)

Thanks

[19yc93]

After another try-and-error I got it. I will share it with you. This was done with KDE Neon (which is based on Ubuntu 16.04 LTS).

• I suppose that you installed Chrono like this. If not, you should maybe install some missing packages.
• Install SWIG. Download Ver. 3.0.12 and unzip it where ever you want. Go to the unzipped folder to /Doc/Manual/Preface.html and follow the installation instructions.
• Open a new Terminal window and type:
  sudo cmake-gui
• Where is the source code:
  /opt/chrono/source
  
• Where to build the binaries:
  /opt/chrono/build
• Click on "Advanced"
• Disable everything expect ENABLE_MODULE_PYTHON
• PYTHON_EXECUTABLE: /home/my_username/anaconda3/bin/python3

• PYTHON_INCLUDE_DIR: /home/my_username/anaconda3/include
• PYTHON_LIBRARY: /home/my_username/anaconda3/lib/libpython3.6m.so
• PYTHON_LIBRARY_DEBUG: empty
• PYTHON_LIBRARY_RELEASE: empty

• SWIG_DIR: /usr/local/share/swig/3.0.12
• SWIG_EXECUTABLE: /usr/local/bin/swig
• SWIG_VERSION: 3.0.12
• Click Configure
• Click Configure again
• You should see in the upper Cmake window (in red color) something like
  To have access to the Chrono::Python wrapper modules, after building and (optionally) installing, append one of the following to the PYTHONPATH environment variable:      
  

  For the modules in the BUILD tree: ...
  For the modules in the INSTALL tree: ...
  
• Copy that to your clipboard or in a text file (you need that later!)

• Click Generate
• Open a Terminal and type:
  cd /opt/chrono/build
  sudo make
  sudo make install
• Edit your ".bashrc" file in your /home/YOUR_USER/ directory. You can do this with your Terminal:
  cd /home/YOUR_USER/
  YOUR_DEFAULT_EDITOR .bashrc
  # for example: kate .bashrc
  
  Add the following line to the .bashrc-file:
  export PYTHONPATH=YOUR_PATH
  Replace YOUR_PATH with the path you copied from "For the modules in the BUILD tree: ..." ! For example: export PYTHONPATH=/opt/chrono/build/bin/
  
• Save the .bashrc file and close it
• Done!