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Getting Started on Linux
==========================
Requirements
------------
* Qt package from `here`_ or a custom build of Qt 5.12+ (preferably 5.15)
* A Python interpreter (version Python 3.6+).
You can either use the one provided by your OS, or get it
from the `official website`_.
* GCC
* `CMake`_ version 3.1 or greater
* Git version 2 or greater
* `libclang`_ from your system or the prebuilt version from the ``Qt Downloads`` page is
recommended. libclang10 is required for PySide 5.15.
* ``sphinx`` package for the documentation (optional).
* Depending on your linux distribution, the following dependencies might also be required:
* ``libgl-dev``,
* ``python-dev``,
* ``python-distutils``,
* and ``python-setuptools``.
.. _here: https://qt.io/download
.. _official website: https://www.python.org/downloads/
.. _CMake: https://cmake.org/download/
.. _libclang: http://download.qt.io/development_releases/prebuilt/libclang/
Building from source
--------------------
Creating a virtual environment
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``venv`` module allows you to create a local, user-writeable copy of a python environment into
which arbitrary modules can be installed and which can be removed after use::
python -m venv testenv
source testenv/bin/activate
pip install -r requirements.txt # General dependencies, documentation, and examples.
will create and use a new virtual environment, which is indicated by the command prompt changing.
Setting up CLANG
~~~~~~~~~~~~~~~~
If you don't have libclang already in your system, you can download from the Qt servers::
wget https://download.qt.io/development_releases/prebuilt/libclang/libclang-release_100-based-linux-Rhel7.6-gcc5.3-x86_64.7z
Extract the files, and leave it on any desired path, and then set these two required
environment variables::
7z x libclang-release_100-based-linux-Rhel7.6-gcc5.3-x86_64.7z
export CLANG_INSTALL_DIR=$PWD/libclang
Getting PySide6
~~~~~~~~~~~~~~~
Cloning the official repository can be done by::
git clone --recursive https://code.qt.io/pyside/pyside-setup
Checking out the version that we want to build, e.g. 5.15::
cd pyside-setup && git checkout 5.15
.. note:: Keep in mind you need to use the same version as your Qt installation.
Additionally, ``git checkout -b 5.15 --track origin/5.14`` could be a better option
in case you want to work on it.
Building PySide6
~~~~~~~~~~~~~~~~
Check your Qt installation path, to specifically use that version of qmake to build PySide6.
e.g. ``/opt/Qt/5.14.0/gcc_64/bin/qmake``.
Build can take a few minutes, so it is recommended to use more than one CPU core::
python setup.py build --qmake=/opt/Qt/5.15.0/gcc_64/bin/qmake --build-tests --ignore-git --parallel=8
Installing PySide6
~~~~~~~~~~~~~~~~~~
To install on the current directory, just run::
python setup.py install --qmake=/opt/Qt/5.15.0/gcc_64/bin/qmake --build-tests --ignore-git --parallel=8
Test installation
~~~~~~~~~~~~~~~~~
You can execute one of the examples to verify the process is properly working.
Remember to properly set the environment variables for Qt and PySide6::
python examples/widgets/widgets/tetrix.py
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