How I can run python script from QT

[Christian Ehrlicher]

@Wasee said in How I can run python script from QT:

How I can run python script from qt Code?

Instead executing /bin/bash execute /bin/python maybe?

[JonB]

@Wasee
As @Christian-Ehrlicher has written, but depending on your version of Linux you may need to specify python3 to run Python 3 rather than 2....

[artwaw]

@Wasee To add a bit: if your script is configured (chmod +x and shebang) to run independently you can also use the same methodology as for running the bash script (bash will call interpreter defined in the shebang) - sometimes you might need shell environment for your script. It all depends on what the script does.

[Wasee]

Hi everyone;
I coded following but did not run script;

   
    QProcess process;
    process.startDetached("/bin/python", QStringList() << "-c" << "/home/user/bashScripts/test.py");
    qDebug()<<"Welcome";

thanks

[Wasee]

Hi everyone;
I need to pass two argument with script to with qt code. These argument entered from the linedit etc.
thanks

[artwaw]

@Wasee
Do you really need it detached?
Anyway, arguments can be bundled further down the line:

process.startDetached("/bin/python", QStringList({"-c","/home/user/bashScripts/test.py",ui->lineEdit->text().simplified()}));

and so on.

[JonB]

@Wasee said in How I can run python script from QT:

process.startDetached("/bin/python", QStringList() << "-c" << "/home/user/bashScripts/test.py");

As I stated earlier, is /bin/python correct for your desired Python on your machine?

Since when has Python used a -c argument to run a script? Did you try /bin/python -c /home/user/bashScripts/test.py from the command-line first? Remove that -c argument?

If it still does not work, check for errors and any output to stdout/stderr from QProcess.

[artwaw]

@JonB said in How I can run python script from QT:

Since when has Python used a -c argument to run a script?

https://docs.python.org/3/using/cmdline.html

seems legit? I assumed the OP knows how to call an interpreter and used the parameter deliberately.

[Wasee]

@artwaw said in How I can run python script from QT:

process.startDetached("/bin/python", QStringList({"-c","/home/user/bashScripts/test.py",ui->lineEdit->text().simplified()}));

Didn't run script by changing the code.

[JonB]

@artwaw
Nope, you mis-read what is there!

python  [-c command]

runs command as as python, not as a python file of script.

As it says there, to run a script file it's

python myscript.py

I imagine the OP copied the -c directly from the example of the Bash script, which does use -c for a file:

/bin/bash -c myscript.sh

:)

[JonB]

@Wasee said in How I can run python script from QT:

process.startDetached("/bin/python", QStringList({"-c","/home/user/bashScripts/test.py",ui->lineEdit->text().simplified()}));
Didn't run script by changing the code.

Already told you why earlier, what you should test, and what you need to have. Any particular reason to just ignore me?

[Wasee]

@JonB Hi;
I run in command-line following commands: command not found
user@user-HP:~$ sudo /bin/python -c /home/user/bashScripts/test.py
[sudo] password for user:
sudo: /bin/python: command not found
user@user-HP:~$ sudo /bin/python /home/user/bashScripts/test.py
[sudo] password for user:
sudo: /bin/python: command not found
user@user-HP:~$

thanks

[Wasee]

@JonB said in How I can run python script from QT:

python myscript.py

Its work perfect now I want to pass two arguments with my script from UI basically two different integers.

thanks

[Wasee]

Hi everyone;
I coded following my script run successfully:

process.startDetached("python /home/user/bashScripts/test.py");

But when I pass arguments then my script fails to run ; I coded following script as argument:

process.startDetached(({"python /home/user/bashScripts/test.py",(ui->pan->text().simplified()),(ui->tilt->text().simplified());}));

thanks

[jsulm]

@Wasee Please read QProcess documentation!
And also please read what @JonB gave you!