pyscript из под Qt-GUI

$ cat main.cc 
#include <QtGui>


class MyProc: public QProcess {
Q_OBJECT
public slots:
void script_start()
{
    qDebug() << "test.py start ...";
    start("./test.py");
}
void listen_script(){
    //qDebug() <<  readAllStandardOutput() ;
    qDebug() <<  readLine() ;
}
};

int main(int argc, char *argv[]){
    QApplication app(argc,argv);
    QPushButton but("start xcalc");
    MyProc proc;
    but.setGeometry(200,200,400,200);
    but.show();
    QObject::connect(&but,SIGNAL(clicked()),&proc,SLOT(script_start()));
    QObject::connect(&proc,SIGNAL(readyReadStandardOutput()),&proc,SLOT(listen_script()));
    return app.exec();
}
#include "main.moc"


$ cat test.py 
#!/usr/bin/python
from time import sleep
for i in range(10):
    print i
    sleep(5)

#!/usr/bin/python

import sys
from time import sleep
for i in range(10):
    print i
    sys.stdout.flush()
    sleep(1)