PySide is the Python Qt bindings project, providing access to the complete Qt 5.x framework as well as to generator tools for rapidly generating bindings for any C++ libraries.

The PySide project is developed in the open, with all facilities you'd expect from any modern OSS project such as all code in a git repository and an open design process. We welcome any contribution conforming to the Qt Contribution Agreement.

PySide 2 supports Qt5. For building, please read about getting started. Then download the sources by running

git clone https://code.qt.io/pyside/pyside-setup

PySide versions following 5.6 use a C++ parser based on Clang. The Clang library (C-bindings), version 3.9 or higher is required for building. Prebuilt versions of it can be downloaded from download.qt.io.

After unpacking the archive, set the environment variable LLVM_INSTALL_DIR to point to the folder containing the include and lib directories of Clang:

7z x .../libclang-release_39-linux-Rhel7.2-gcc5.3-x86_64.7z
export LLVM_INSTALL_DIR=$PWD/libclang

On Windows:

7z x .../libclang-release_39-windows-vs2015_64.7z
SET LLVM_INSTALL_DIR=%CD%\libclang

You might consider using a virtual environment as described at getting started. You should be able to build:

cd pyside-setup
python setup.py install

The setup script will try to find the location of the qmake tool of the Qt version to be used and the cmake build tool in the path. Non-standard locations can be specified by the --qmake=path_to_qmake or --cmake=path_to_cmake command line options.