Installation issues

[nltran]

Hello,

I am running macOS big sur on an Apple M1 (MacBook Air)
I am trying to install vsketch by following the documentation. There are a couple of dependencies required by vsketch that I could successfully install with brew (scipy, geos, shapely) but I have trouble in particular with PySide2.

I keep getting the following error
ERROR: No matching distribution found for PySide2<6.0.0,>=5.15.2
although I have installed PySide2 via home-brew

Do you have any idea what is happening? Could you help me with installing vsketch?

[abey79]

Hello @nltran. I don't have a M1 computer to test, but I've heard of many issue with Homebrew. My suggestion is to use MacPort's python 3.9, which is known to work on several M1 users. You'll want to install at least the following packages:

sudo port install python3.9 py39-pip py39-shapely py39-pyside2  py39-scipy

Then, as always, it's best to use a virtual environment to install vsketch.

[nltran]

Thanks @abey79 !

[llimllib]

I was able to build on an M1 mac with:

brew install llvm qt@5
CLANG_INSTALL_DIR=/opt/homebrew/opt/llvm \
    CMAKE_PREFIX_PATH=/opt/homebrew/Cellar/qt@5/5.15.2 \
    python setup.py install --qmake=$(which qmake) --parallel=8 --build-tests

I was not able to get the library to recognize the clang install that is already present on my system at /Library/Developer/CommandLineTools/usr, no idea why

[consier]

I tried installing Pyside2 via MacPorts as suggested by @abey79
Unfortunately MacPort's Pyside2 is not yet compatible with arm64 / Mac M1: gt5-webengine, which is a dependency for Pyside2 fails to build.

[abey79]

@abruto I'm surprised by this as it did work for others. Did you install the corresponding MacPort package? (port install py39-pyside2)

[consier]

Yes, I tried.
port install py39-pyside2 yields:

Error: Failed to build qt5-qtwebengine: command execution failed
Error: Processing of port py39-pyside2 failed

There is an open ticket about this issue on MacPorts.

[abey79]

Oh ok. What happens if you pip install pyside2 in your venv?

[consier]

ERROR: Could not find a version that satisfies the requirement PySide2 (from versions: none)
ERROR: No matching distribution found for PySide2

Thank you you for trying to help, @abey79. I'm really trying hard to install vsketch for quite a while now..

[hishamsajid]

I am trying to install on a Lenovo thinkpad and getting a similar error

ERROR: No matching distribution found for numpy<2.0.0,>=1.20.1

I have set up a new a python3.6 conda environment just for this purpose but still getting the same error.

EDIT:

Issue gets fixed on python3.7 - I think this requirement should be mentioned in the installation section.

[abey79]

@hishamsajid indeed Numpy has dropped support for python 3.6 recently. I strongly suggest moving to python 3.9, as 3.7 is getting older and with 3.10 about to be released I'm expecting more librairies to drop support.

And yes, I agree installation instructions could be improved. Feel free to submit a PR to this end ;)

[abey79]

I've recently updated vpype's installation instructions. They apply 100% to vsketch.