Qt for Python/GettingStarted

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Considerations before starting

PySide2 supports Python 2 (recommended: 2.7 onwards, Compatibility module six installed) and Python 3 (recommended: 3.5 onwards).

Currently, only Qt 5.6 is supported. Qt needs to be build with the QtXmlPatterns module.


Development happens in the dev branches of the repositories. Contributions follow the standard process.

Building requires CMake.

It is helpful to have debug binaries and/or symbols for Python available. On Windows, this is done choosing Customized Installation when installing python and ticking the respective check boxes. On Linux, debug packages can be installed in addition. For Ubuntu, the packages python3-dbg, libpython3-dbg provide a debug binary python3-dbg.

It is also recommended to use a Virtual Environment for testing to be able to always start from a clean base and avoid issues with write permissions in installations.

On Linux, the command

virtualenv -p /usr/bin/python3-dbg testenv

creates a Virtual Environment named testenv for debugging purposes. On Windows, an installation step may be required:

python -m pip install virtualenv
python -m virtualenv testenv

The Virtual Environment is activated by

 source testenv/bin/activate


CALL testenv\Scripts\activate.bat