CuraEngine - Trying to execute from PYthon Shell....

[miketrotta 0]

If I try to add a parameter in my command line I get this error....

If I remove the -v   I get the CuraEngine verbose help response.....

What am I missing?  thanks.  I am newbie.   I had to add single quotes around doubles just to get this far.

>>> os.system(r'"D:\Program Files\UltiMaker Cura 5.5.0\CuraEngine.exe -v"')
'D:\Program' is not recognized as an internal or external command,
operable program or batch file.
1

[Slashee_the_Cow 272]

5 hours ago, miketrotta said:

os.system(r'"D:\Program Files\UltiMaker Cura 5.5.0\CuraEngine.exe -v"')

The quotes need to go around the path to the program, but not the arguments (unless they contain spaces)

So it should be:

os.system(r'"D:\Program Files\UltiMaker Cura 5.5.0\CuraEngine.exe" -v')

• Why you have to put the single quotes around it: Because the shell command you're entering contains quotes. The command is a string in Python so putting the same type of quote you start with in the middle of the string will end it. But you can put " in a string contained by ' and vice versa.
• Why you need the r: Technically you don't. r before a string will make Python treat it as raw text. Normally a backslash \ is treated as the start of an escape sequence, like how \n is a new line. You can avoid this by using double backslashes (which just get converted to a single backslash), just make sure it's not a raw string if you do:
  os.system('"D:\\Program Files\\UltiMaker Cura 5.5.0\\CuraEngine.exe" -v')

Edited December 7, 2023 by Slashee_the_Cow