The Qt library has to be built with the same version of MSVC as Python and PySide2, this can be selected when using the online installer.
Qt package from here or a custom build of Qt (preferably Qt 5.12 or greater)
A Python interpreter (version Python 3.5+). Preferably get it from the official website .
MSVC2017 (or MSVC2019) for Python 3 on Windows,
CMake 第 3.1 版或更高版本
Git 第 2 版或更高版本
libclang prebuilt version from the
Qt 下载page is recommended.OpenSSL (optional for SSL support, Qt must have been configured using the same SSL library).
virtualenvis strongly recommended, but optional.
sphinxpackage for the documentation (optional).
注意
Python 2.7 interpreter is not supported. The official Python 2.7 binary package offerred on the official website is built using MSVC 2007, while the Qt libraries are built using MSVC 2015/2017. If you intend to use Python 2.7, build the interpreter yourself with MSVC 2015 or later, and build Qt for Python with it.
virtualenv
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:
virtualenv testenv
call testenv\scripts\activate
pip install sphinx # optional: documentation
pip install numpy PyOpenGL # optional: for examples
will create and use a new virtual environment, which is indicated by the command prompt changing.
If you don’t have libclang already in your system, you can download from the Qt servers, e.g.
libclang-release_60-windows-vs2015_64-clazy.7z
.
Extract the files, and leave it on any desired path, e.g
c:\
, and then set these two required environment variables:
set LLVM_INSTALL_DIR=c:\libclang
set PATH=C:\libclang\bin;%PATH%
可以克隆官方存储库通过：
git clone --recursive https://code.qt.io/pyside/pyside-setup
签出想要构建的版本，如 5.14：
cd pyside-setup && git checkout 5.14
注意
Keep in mind you need to use the same version as your Qt installation
Check your Qt installation path, to specifically use that version of qmake to build PySide2. e.g.
E:\Qt\5.12.0\msvc2015_64\bin\qmake.exe
.
Build can take a few minutes, so it is recommended to use more than one CPU core:
python setup.py build --qmake=c:\path\to\qmake.exe --openssl=c:\path\to\openssl\bin --build-tests --ignore-git --parallel=8
要安装到当前目录，仅仅运行：
python setup.py install --qmake=c:\path\to\qmake.exe --openssl=c:\path\to\openssl\bin --build-tests --ignore-git --parallel=8
You can execute one of the examples to verify the process is properly working. Remember to properly set the environment variables for Qt and PySide2:
python examples/widgets/widgets/tetrix.py