Set arguments with diffrent formats in QProcess

问题

I want to run a python script in my qt project after clicking a pushButton using QProcess. This is my code :

void MainWindow::on_pushButton_clicked()
{
    QProcess p;
        QStringList params;
        QString pythonPath = "C:/Python/python.exe";
        QString pythonScript = "C:\\Users\\melek\\Desktop\\user_interface\\user_interface-master\\match.py";

        params << pythonScript;
        QStringList arguments;
        arguments <<"-t1"<<"start.png"<<"-t2"<< "end.png"<<"-i"<< "images_";
        p.setArguments(arguments);
        p.start(pythonPath, params);
        p.execute(pythonPath,params);

        p.waitForFinished(-1);


        QString p_stdout = p.readAll();
        QString output(p.readAllStandardOutput());
        QString p_stderr = p.readAllStandardError();
        if(!p_stderr.isEmpty())
           qDebug()<<"Python error:"<<p_stderr;
        qDebug()<<"Python result="<<p_stdout;
        qDebug()<<p_stdout;
        qDebug()<<output;
}

The python arguments are shown in the python code :

ap = argparse.ArgumentParser()
ap.add_argument("-t1", "--template1", required=True, help="Path to template image")
ap.add_argument("-t2", "--template2", required=True, help="Path to template image")
ap.add_argument("-i", "--images", required=True,
    help="Path to images where template will be matched")
ap.add_argument("-v", "--visualize",
    help="Flag indicating whether or not to visualize each iteration")

This is what I write in the terminal of python to run the program correctly: path_to_script\python python match.py --template1 start.png --template2 end.png --images images_

Where templates 1 and 2 are two png pictures and images_ is a folder and --visualize must'n t be given in the terminal.

Once I run the program in QT, I receieve the following error:

usage: match.py [-h] -t1 TEMPLATE1 -t2 TEMPLATE2 -i IMAGES [-v VISUALIZE] match.py: error: the following arguments are required: -t1/--template1, -t2/--template2, -i/--images

来源：https://stackoverflow.com/questions/61567866/set-arguments-with-diffrent-formats-in-qprocess

标签

python

c++

arguments

qprocess