FEM and python 3 issues

Mods FEM
1

I think it is an external WB or script…
but i think it is FEM related: https://forum.freecadweb.org/viewtopic.php?p=267390#p267390

2

no it is not external, it is FreeCAD FEM …

damn I still have not joined the Py3 party on my Linux dev machine. I will have a look at this with a win py3 dev release of sgrogan.

bernd

3

FYI there is a Conda based AppImage available and therefore you don’t need Windows to test it.

4

Is there a way to edit files (.py) in the AppImage? Testing is great, but we are counting on bernd to fix it.

5

Sure.

downloaded.AppImage --appimage-extract
cd squashfs-root

You can navigate to content such as usr/Mod/Fem/module.py and do some modifications. To test the changes:

./AppRun

If you want to pack it again as an AppImage:

cd ..
wget "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage"
chmod a+x appimagetool-x86_64.AppImage
./appimagetool-x86_64.AppImage squashfs-root
6

all this conda is like git. Once you have undersood it it’s simple but if not it not usable at all. Whereas I have understood git, i have not yet understood all this conda … May be it is because I have not given it a try. I will go for the win way ATM because it only needs 2 minutes to download the image.

bernd

7

@triplus wow, very cool! Thanks for sharing

8

Instructions above are not for using Conda. As AppImage is only based on Conda (packages). Therefore if you will follow the procedure as outlined above on downloaded AppImage:

downloaded.AppImage --appimage-extract
cd squashfs-root

https://github.com/FreeCAD/FreeCAD/releases

You don’t have to understand anything about Conda (or AppImage). You can start modifying .py files and test the changes by starting FreeCAD (located in the squashfs-root folder):

./AppRun

Mentioned procedure doesn’t modify your environment in any way. That is nothing gets installed and no environment paths get modified.

You’re welcome.

9

wow that sounds gread! but I need to install some package on my debian, do I? Which one, there is no package called appimage on debian stretch.

10

You get it from the downloads page https://github.com/freecad/freecad/releases

https://github.com/FreeCAD/FreeCAD/releases/download/0.18_pre/FreeCAD_0.18.15150_Conda_Py3Qt5_glibc2.12-x86_64.AppImage

11

No additional packages need to get installed. What is needed is already included in the AppImage. As @sgrogan pointed out therefore all you need to do is to download the AppImage from the FreeCAD GitHub releases page (and follow the procedure above).

P.S. Note that there are 2 AppImages on the releases page (Py2/Qt4 - PPA based and Py3/Qt5 - Conda based).

12

:open_mouth: :open_mouth: :open_mouth: I never knew it’s so easy … i really could’nt believe it :blush:

13
  • start FreeCAD
  • open FEM new solver example
  • double click on elmer solver
Traceback (most recent call last):
  File "/home/hugo/Desktop/AppImage/squashfs-root/usr/Mod/Fem/femsolver/solverbase.py", line 79, in setEdit
    machine = run.getMachine(vobj.Object)
  File "/home/hugo/Desktop/AppImage/squashfs-root/usr/Mod/Fem/femsolver/run.py", line 54, in getMachine
    _DocObserver.attach()
  File "/home/hugo/Desktop/AppImage/squashfs-root/usr/Mod/Fem/femsolver/run.py", line 334, in attach
    cls._instance = cls()
  File "/home/hugo/Desktop/AppImage/squashfs-root/usr/Mod/Fem/femsolver/run.py", line 326, in __init__
    for doc in App.listDocuments().itervalues():
<class 'AttributeError'>: 'dict' object has no attribute 'itervalues'

confirmed on:

OS: Debian GNU/Linux 9 (stretch)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15150 (Git)
Build type: Release
Branch: master
Hash: fe8f172ce1f725cbc5e7a1538beaaac6a6529ec2
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: German/Switzerland (de_CH)


partially joined the Py3 party :smiley:

14

Good to hear it is working. Thanks to all the hard work AppImage inventors did. Packaging work invested on PPA/Conda side. Travis related work macOS FreeCAD packaging team did in the past …

PR or it didn’t happen. :wink:

15

FYI, I’ve added this to Using_AppImages_in_your_Development_Workflow

16

Great.

17

:mrgreen: if the PR would be the one that counts I have joined month ago already … 42bfdf2 or 8de9707 or 656a669 IMHO joining the party for me means MY work and developing machine runs Py3 …

18

All this Python 3 partying going on lately. Hard to keep track! :sunglasses: