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execv(python): No such file or directory / python working directory

  • chili023
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29 Oct 2022 20:59 #255402 by chili023
execv(python): No such file or directory / python working directory was created by chili023
I just freshly installed linuxcnc 2.9 pre on debina bullseye
The system works but now I want to include some python code.
at the line:
loadusr -Wn compensation python compensation.py filename.txt
it gives the error 
execv(python): No such file or directory

The file is the configs/"configurationName" folder.
Where is python looking for the file?

Thanks
A.

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  • tommylight
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29 Oct 2022 21:32 #255406 by tommylight
Replied by tommylight on topic execv(python): No such file or directory / python working directory

loadusr -Wn compensation python compensation.py filename.txt
it gives the error 
execv(python): No such file or directory

One thing to check is make sure the compensation.py file is executable.

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29 Oct 2022 21:59 #255408 by chili023
Replied by chili023 on topic execv(python): No such file or directory / python working directory
Thanks I just set
chmod 777 compensation.py and filename.txt

no change.
the working directory of linuxcnc ist the directory of the config ?
so /home/user/linuxcnc/configs/maschine ?

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29 Oct 2022 22:10 #255410 by chili023
Replied by chili023 on topic execv(python): No such file or directory / python working directory
even with loadusr -Wn compensation python /home/work/linuxcnc/configs/SilverGlider/compensation.py

it gives this error

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29 Oct 2022 22:44 #255412 by cmorley
Replied by cmorley on topic execv(python): No such file or directory / python working directory
try:

loadusr -Wn compensation python3 compensation.py filename.txt
The following user(s) said Thank You: SrLange61

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29 Oct 2022 23:00 #255416 by cmorley
Replied by cmorley on topic execv(python): No such file or directory / python working directory
Wait, did you add the compensation component to linuxcnc?
If so where did you add it?

Also qtdragon_hd in 2.9 supports built in gcode ripper and z level compensation.
Are you instead trying 3rd party code?
Could you give more information.

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08 Aug 2023 05:55 #277318 by SrLange61
Replied by SrLange61 on topic execv(python): No such file or directory / python working directory
I just did a Debian upgrade and adding the "3" to python fixed it for me.

Thanks
srl
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24 Dec 2023 11:44 - 24 Dec 2023 11:57 #288991 by Dieter
Replied by Dieter on topic execv(python): No such file or directory / python working directory
Hallo zusammen, ich habe das selbe Problem,
ich habe jetzt den Eintrag in der Hal auf
loadusr -Wn compensation python3 compensation.py probe-results.txt cubic
umgeschrieben und zusätzlich in der compensation.py die Zeil_1 wie folgt umbenannt #!/usr/bin/env python3
dann kam aber folgende Meldung:

note: jog_invert=set()
File "/home/dieter/linuxcnc/configs/Axis_mit_Handrad/compensation.py", line 43
print "ERROR! No input file name specified!"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
compensation.hal:8: waitpid failed python3 compensation
compensation.hal:8: python3 exited without becoming ready
9390
9447

probe-results.txt müsste doch die Datei sein die er nicht findet oder?

Als weiterer Hinweis:
Was mache ich falsch, da ja dies bereit schon mal funktioniert hatte, hatte nur an der INI ein paar Zeilen dazugefügt, was mit diesem Thema nichts zu tun hatte, dann kam auf einmal diese Fehlermeldung: execv(python): No such file or directory / python working directory

Dann habe ich einen neuen Rechner mit Debian 12 und Linuxcnc 2.9.1 aufgesetzt der hat Python3 installiert, aber hier funktioniert es auch nicht.
der Alte Rechner bei dem es auch nicht mehr funktioniert hatte Linuxcn 2.8.4 und Pyhton 2 installiert.
Leider weiss ich keinen Rat mehr.

 
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Last edit: 24 Dec 2023 11:57 by Dieter.

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24 Dec 2023 11:54 #288992 by Aciera
Replied by Aciera on topic execv(python): No such file or directory / python working directory

File "/home/dieter/linuxcnc/configs/Axis_mit_Handrad/compensation.py", line 43
print "ERROR! No input file name specified!"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?

Das ist klar Python2 Syntax, daher die Fehlermeldung. Vielleicht kannst du die Datei 'compensation.py' hier posten.

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24 Dec 2023 12:41 #288995 by Dieter
Replied by Dieter on topic execv(python): No such file or directory / python working directory
Super Danke, habe ich oben schon hochgeladen
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  1. Configuring LinuxCNC
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  5. execv(python): No such file or directory / python working directory
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