Cura Post Processing Plugin Import Erros

[Sporech 1]

Hi All,

 

I'm writing a post processing plugin for Cura, and am trying to import Matplotlib, however this isn't working. I get an import error which says it can't locate the module, even though python should be able to locate it just fine.

 

Has anyone else had this issue?

 

Thanks

[ahoeben 1,986]

Cura comes with its own Python files. You can not "import" modules that you installed on your system, only modules that are in the Python environment that comes with Cura. If you just want to use this postprocessing script for your local install of Cura, it may be possible to add the appropriate files for the Matplotlib module to the libs folder inside the folder where you installed Cura. You will have to use the Matplotlib files for Python 3.8.10.

[Sporech 1]

Hi, thank you for clarifying. I've installed Matplotlib for Python3.8 and copied the folder across to my Cura installation, however there are some compatibility issues with the library. 

I'm struggling to troubleshoot this problem, is there a problem with dependencies?

[ahoeben 1,986]

Do you have an M1 processor? If so, the files you copied may be for ARM processors, while the Python installation that comes with Cura is for Intel processors.

[Sporech 1]

Yeah my computer has an M1 processor, I can try and re-install for the correct architecture, should it be for a particular version of Intel processor?

 

[ahoeben 1,986]

AFAIK, Python for macOS knows only one Intel architecture. But it is important that you use version 3.8.10.

 

Get the "Intel" installer, not the "Universal2" installer.

Edited November 22, 2021 by ahoeben

[Sporech 1]

Should 3.8 work or does it need to be 3.8.10? And can you elaborate on getting the Intel installer?

[ahoeben 1,986]

Yes, it needs to be 3.8.10.

 

Go to https://www.python.org/downloads/macos/

Scroll down to Python 3.8.10 - May 3, 2021

Download macOS 64-bit Intel installer

[Sporech 1]

Thanks that worked!