Mac M1 & PySide 2/6 can't Install lib

Dariusz

Hey

I'm trying to install PySide2/6 on my m1 mac but all I get is >

ERROR: Could not find a version that satisfies the requirement PySide2
ERROR: No matching distribution found for PySide2

Any ideas how to bite it?

TIA

SGaist

Hi,

How are you trying to install it ?
Using the system pip ? Conda ? Brew ? Macports ?

Dariusz

Pycharm just in settings > interpreter + PySide2/ PySide6
As well as I tried via pip install I think too.
I'm new to Mac so perhaps thats totally wrong way of doing it ?
TIA

SGaist

There are several possible ways to handle Python on macOS.

However, based on the Qt for Python Wiki page, it looks like the M1 is not yet natively supported.

I would check with homebrew and/or conda.

Dariusz

@SGaist F!ck big time. Bought mac so I can dev my apps for Apple & Qt and now Qt is not supported... ohh boy now I'm in trouble :- )
Gotta start praying that M1 get supports... this... year... maybe? :- X

SGaist

Qt for Python is not yet supported.

You can still develop in C++ or try to build PySide2/6 yourself.

GRomR1

Hi @Dariusz
I use this article and I successfully build PySide6 - 6.1.2 from sources on my MacBook Pro with M1.

In the begin I start install necessary utilities via brew:

brew install qt@6 llvm cmake ninja

After that I clone the setup repo, activate python venv and install python packages:

git clone --recursive https://code.qt.io/pyside/pyside-setup
cd pyside-setup && git checkout 6.1.2
python3 -m venv testenv
source testenv/bin/activate
pip install -r requirements.txt

I've found that the installation will work only if set this system variable:

export CLANG_INSTALL_DIR=/opt/homebrew/opt/llvm

Next I run the build process. It takes a while time (check the correct path for qmake - qmake -v):

python setup.py build --qmake=/opt/homebrew/Cellar/qt/6.1.2/bin/qmake --build-tests --ignore-git --parallel=8

In the result I see the finish message:

--- Build completed (413s)

To install the PySide into the current virtual env run this:

python3 setup.py install --qmake=/opt/homebrew/Cellar/qt/6.1.2/bin/qmake --build-tests --ignore-git --parallel=8 --reuse-build

Completed. You will see the PySide package in pip list:

pip list | grep PySide
PySide6                       6.1.2

Also I use these commandd to copy the installed package to another project

export MY_PROJECT_VENV_PATH=../another-project/venv
rsync -av testenv/bin/shiboken6* $MY_PROJECT_VENV_PATH/bin
rsync -av testenv/bin/pyside6-* .$MY_PROJECT_VENV_PATH/bin
rsync -av testenv/lib/python3.9/site-packages/PySide6*  $MY_PROJECT_VENV_PATH/lib/python3.9/site-packages/
rsync -av testenv/lib/python3.9/site-packages/shiboken6*  $MY_PROJECT_VENV_PATH/lib/python3.9/site-packages/

sanpen

Hi this was of great help, however I cannot get it done.

As of today the only difference for me is that the version downloaded by brew was 6.2.0.
In the last compilation steps I get an error saying:

CMake Error at cmake_install.cmake:61 (file):
  file INSTALL cannot find "/opt/homebrew/Cellar/qt/6.2.0/bin/Assistant.app":
  No such file or directory.

I have no idea whay that is missing or how to get it. Any help is appreciated.

Thanks,
Santi

lyoo

@sanpen
just need to create some links, then you can walk around the issue.

cd /opt/homebrew/Cellar/qt/6.2.0/bin
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/Assistant.app Assistant.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/Designer.app Designer.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/Linguist.app Linguist.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/pixeltool.app pixeltool.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/qdbusviewer.app qdbusviewer.app

Pipper

I just saw this thread. @Dariusz, go into the /Applications folder on your Mac and right click the 'Terminal' app in the Utilities folder. You'll see a check box for 'Open using Rosetta'. If you check that, you should be good to go. Just close and reopen the Terminal app if it was already open. Hope that works.

phatmandrake

@lyoo said in Mac M1 & PySide 2/6 can't Install lib:

@sanpen
just need to create some links, then you can walk around the issue.

cd /opt/homebrew/Cellar/qt/6.2.0/bin
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/Assistant.app Assistant.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/Designer.app Designer.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/Linguist.app Linguist.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/pixeltool.app pixeltool.app
ln -s /opt/homebrew/Cellar/qt/6.2.0/libexec/qdbusviewer.app qdbusviewer.app

This worked, but interestingly the bin directory as of 6.2.2 contains aliases for these apps, just without the .app suffix.

CristianMaureira

FYI: PySide 6.2.2+ provide support for Apple Silicon, so you could simple run a pip install pyside6 and get it.
Because PySide2 is in maintenance mode, there has been no discussion on backporting the support.