python 3.8

[Jonathan Shimwell]

Has anyone got CADQuery working on python 3.8,

It appears to not quite work over here

I've tried conda install -c conda-forge -c cadquery cadquery=master and conda install -c conda-forge -c cadquery cadquery=2

all the best

Jon

[Wink Saville]

I have Arch Linux and typically use python 3.8 and I to found cadquery doesn't like that version.

Therefore use 3.7.x, for cadquery, you can specifiy the python version when you create a conda environemnt see this:

https://docs.conda.io/projects/conda/en/latest/user-guide/getting-started.html#managing-python

I'd sure like cadquery to move to 3.8, which is now the default for anaconda, according to this:

https://docs.anaconda.com/anaconda/reference/release-notes/

[Jeremy Wright]

Do you get an error running CQ on Python 3.8? I was under the impression that after #305 was merged 3.8 worked, but don't use 3.8 yet so haven't verified.

https://github.com/CadQuery/cadquery/pull/305

[Wink Saville]

I'll try 3.8 on master today.

[Jonathan Shimwell]

Hi all

To demonstrate the new anaconda (which uses python 3.8 installer) compared to the previous one (with python 3.7 installer) I have made two docker images and tried to build them both.

Docker images attached for interest

best

Jon

[Wink Saville]

I'm using miniconda3 on Arch Linux which defaults to python 3.8 but

when I installed cadquery using `conda env create -n cq-dev -f environment.yml` 

on master it installed python 3.7. So I had to modify environment.yml to get python 3.8:

wink@3900x:~/prgs/CadQuery/forks/cadquery (master)

$ git diff environment.yml

diff --git a/environment.yml b/environment.yml

index 2cb5548..44f28b9 100644

--- a/environment.yml

+++ b/environment.yml

@@ -4,8 +4,8 @@ channels:

   - conda-forge

   - defaults

 dependencies:

-  - python>=3.6

-  - ipython=6.5.0

+  - python>=3.8

+  - ipython

   - ocp

   - pyparsing

   - sphinx=2.4

I then tested "box.py" using a python 3.8 feature where

you can easily print values using this syntax: f"{result=}"

(cq-dev2) wink@3900x:~/prgs/CadQuery/projects/box

$ cat box.py

import cadquery as cq

result = cq.Workplane("front").box(2.0, 2.0, 0.5)

print(f"{result=}")

(cq-dev2) wink@3900x:~/prgs/CadQuery/projects/box

$ python box.py

result=<cadquery.cq.Workplane object at 0x7f45285826a0>

[Jeremy Wright]

Looks like Adam opened a PR related to this.

https://github.com/CadQuery/cadquery/pull/429/files/25bc0a9a5667717d8b72050a0632e730d2bb4b80..44bc293dd52c0b132daa45a63fab0cd03ac40b42

[Adam Urbanczyk]

Hi, yes its should be possible to build a conda package for 3.8. OCP already builds for 3.8.

[Adam Urbanczyk]

DA, it should be possible to install CQ with conda for py3.8 now.

[Zbyněk Winkler]

I was able to install cq with python 3.8. Now cq-editor complains:

UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:

Specifications:

  - cq-editor=master -> python[version='>=3.7,<3.8.0a0']

Your python: python=3.8

--
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post issues at https://github.com/CadQuery/cadquery/issues
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[Adam Urbanczyk]

Yes, that is expected - CQ-editor is not yet python 3.8 compatible. No ETA yet, I have more interesting things to do at the moment.