3.6.0 RC1 python perform_simple_code not working

achrn

I've posted another message about trouble with command connections downloading OM, but I've discovered I've got a problem with even more basic DSF from python, so this one probably comes first!

I'm trying to use CommandConnection perform_simple_code to set a global variable. This was working on 3.5.4, but isn't on 3.6.0 RC1, though the debug messages look like the system thinks it has worked.

My python script:

#!/usr/bin/env python3

# imports
import sys
from dsf.connections import CommandConnection

# create command connection used for communicating with dsf
print("connect", flush=True)
cmd_con = CommandConnection(debug=True)
cmd_con.connect()

# update value of global variable
print ('update variable', flush=True)
res = cmd_con.perform_simple_code('set global.filWeight = 99', async_exec=True)
print ('result:', res, flush=True)

cmd_con.close()

# pack up
sys.exit()

running it:

root@delta:~# ./foobar.py
connect
send: {"mode":"Command","version":12}
recv: {"success":true}
update variable
send: {"command":"SimpleCode","Code":"set global.filWeight = 99","Channel":"SBC","ExecuteAsynchronously":true}
recv: {"success":true,"result":""}
result:
root@delta:~#

but global.filWeight doesn't change to 99 (it stays at 0, from config.g global filWeight = 0).
I have nothing untoward showing up in journalctl -f or any log files (that I've found).

Have I missed something fundamental about DSF python in 3.6?

droftarts

@achrn related to https://forum.duet3d.com/topic/37700/ again one for @chrishamm to have a look at.

Ian

chrishamm

@achrn There were some errors in the previous 3.5 dsf-python client which renders parts of it unusable with 3.6. Hence I suggest you upgrade to dsf-python 3.6-rc.1, I expect that will fix your problems.

achrn

@chrishamm said in 3.6.0 RC1 python perform_simple_code not working:

@achrn There were some errors in the previous 3.5 dsf-python client which renders parts of it unusable with 3.6. Hence I suggest you upgrade to dsf-python 3.6-rc.1, I expect that will fix your problems.

Should 3.6.0 be available by apt install?

I've done apt update and apt upgrade but apt list gives me (inter alia)

python3-dsf-python/unstable,unstable,now 3.5.0-1 all [installed]

All the rest of the packages seem to have gone to 3.6.0 RC1:

duetcontrolserver/unstable,now 3.6.0~rc.1 arm64 [installed,automatic]
duetpimanagementplugin/unstable,now 3.6.0~rc.1 arm64 [installed]
duetpluginservice/unstable,now 3.6.0~rc.1 arm64 [installed]
duetruntime/unstable,now 3.6.0~rc.1 arm64 [installed,automatic]
duetsd/unstable,now 1.1.0 all [installed,automatic]
duetsoftwareframework/unstable,now 3.6.0~rc.1 arm64 [installed]
duettools/unstable,now 3.6.0~rc.1 arm64 [installed,automatic]
duetwebcontrol/unstable,now 3.6.0~rc.1 all [installed,automatic]
duetwebserver/unstable,now 3.6.0~rc.1 arm64 [installed,automatic]

achrn

@achrn said in 3.6.0 RC1 python perform_simple_code not working:

@chrishamm said in 3.6.0 RC1 python perform_simple_code not working:

@achrn There were some errors in the previous 3.5 dsf-python client which renders parts of it unusable with 3.6. Hence I suggest you upgrade to dsf-python 3.6-rc.1, I expect that will fix your problems.

Should 3.6.0 be available by apt install?

Further to that, https://pkg.duet3d.com/dists/unstable-3.6/armv7/binary-armhf/ seems only to contain 3.5 and the 'Packages' file likewise only lists a v3.5

Package: python3-dsf-python
Architecture: all
Version: 3.5.0-1
Priority: optional

However, 3.6 RC1 version is on pypi: https://pypi.org/project/dsf-python/3.6.0rc1/

I've used sudo pip3 install --break-system-packages dsf-python==3.6.0rc1 after which the test script up thread works and the variables gets set to 99. I'll try the other issue I had also.

It would be good if 3.6.0RC1 could be added to the package repository - it seems to be the only 3.5 package in https://pkg.duet3d.com/dists/unstable-3.6/armv7/binary-armhf/ (unless there's a good reason why it shouldn't be included).

chrishamm

@achrn It should be available via the package feeds as well now.