new install, now cant import tkinter

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04 May 2020 12:08 #166614 by owhite
just following up in case anyone else follows this thread - unfortunately I was not able to fix it until I did a reinstall from here:

forum.linuxcnc.org/9-installing-linuxcnc...onic-beaver-mint-iso

...which is a great iso

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04 Jun 2020 18:10 - 04 Jun 2020 18:14 #170114 by arvidb
I just ran into this as well. The problem seems to be that /usr/bin/update_ini has been (partially) updated for python-3, but is still set to use python-2.7. I modified the file and got it working again. See the attached patch file.

Edit: Apply like this:
cd /usr/bin
sudo patch -N < path/to/update_ini.patch
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Last edit: 04 Jun 2020 18:14 by arvidb.
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04 Jun 2020 18:25 #170115 by tommylight
Ran into the same issue yesterday, updater only affected.
Thank you.

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05 Jun 2020 23:32 #170299 by Marcodi
I ran into the same issue 10 days ago, apparently now there is a proposed solution for it.

I couldn't solve it and I downgraded to 2.8.0 again
.

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06 Jun 2020 00:43 - 06 Jun 2020 00:43 #170305 by phillc54
It is probably worthwhile opening an issue here github.com/LinuxCNC/linuxcnc/issues

A quick look doesn't show anything similar.
Last edit: 06 Jun 2020 00:43 by phillc54.
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06 Jun 2020 17:08 #170378 by arvidb
Yes, good advice. I've opened an issue now: github.com/LinuxCNC/linuxcnc/issues/881
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06 Jun 2020 21:56 #170412 by rodw
I installed Beagle's Mint ISO build master from source yesterday and this was one missing dependency which stalled me. I think
sudo apt-get install python3-tk
sudo apt-get install python-tk

Fixed it.
Just not sure on the second one. It might have been python2-tk. I just guessed we'd need to do something for python2 as well.
So I guessed the dependency.

Not related but the only problem I have is the linuxcnc chooser it too hard to read with squashed up text It would be nice if the column was resizable.

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23 Aug 2023 15:45 - 26 Aug 2023 05:56 #278804 by tjtr33
Update: 26 Aug 2023
Phill Carter proved it works in 2.9.0-pre mumble
Thanks Phill
see attached png pyvcp2.9.0-pre.png


Hello, on linuxcnc 2.8.4 ,
I cannot load Jepler's teachin.py
and
reloading python3-tk then puthon-tk did not get rid of 'no module anemd tkinter'
both modules show up to date
"python3-tk is already the newest version (3.7.3-1)."
"python-tk is already the newest version (2.7.16-2)."
yet jeplers teachin.py gets error
"Traceback (most recent call last):
File "/home/tomp/linuxcnc/nc_files/teachin.py", line 27, in <module>
import tkinter
ImportError: No module named tkinter
"
TomP 22Aug2023

EDIT:
this is a bitch
python 2.nnn uses Tkinter
python 3.nnn uses tkinter
note the capital T vs lowercase t
also, most of the calls are different in format
and if you try to search  Tkinter vs tkinter,
the web will pften hand you the wrong info despite quotes
Here is a good reference for python 2.nn's Tkinter
www.geeksforgeeks.org/create-first-gui-a...sing-python-tkinter/
but beware opf 'signup' nagging
To learn more on your own...
run      python2.nnn ( likely default for Linuxcnc users )
then    import Tkinter
then   print(dir(Tkinter))        to get a list of all the keywords in he lib
then   help(Tkinter.wordofinterest))        to learn more about a function
Be very wary of any code on web untill you can recognize which T/t kinter is used
HTH tomp
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Last edit: 26 Aug 2023 05:56 by tjtr33. Reason: update

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26 Aug 2023 06:13 #278994 by tjtr33
I womder if a python2/Tkinter or pyton3/tkinter file could be on a tab?
I originally used a floating pane  using python3/tkinter file for a project.
Then I thought  , hey,  embed that in an axis side panel or tab.
That began the trip here to 'embed py-mumble in a tab' realm.

The control panel created has no hal pins, no hal conmnections.
Yet it controls/reports on hardware.
It controlls stuff used while machining but not under LCNC control.
Its very independant, just close at hand.

I attacj an example pyTk cpntrol pane
( requires a /dev/ttyACM0 device connected
... any arduino with a dip 328p will do , no sketch required )

just thinking out loud
tomp
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