Python in Qt Creator

I've been recently working to port Saera to the N9, which means I have to use Qt. After a few dead ends, I decided to try building a few of the Qt sample apps to get a feel for how it was supposed to work. I learned how to use Qt Creator, how to pair with a device, and how to write a simple QML app. I decided to move on to the project itself - and ran into a large hurdle to clear: Qt Creator doesn't support Python.
Or rather, it does, but only as a filetype; there isn't a way to tell Qt Creator to use a Python file as the main executable rather than the C++ file it automatically generates. I didn't really want to have to port Saera to C, so I went searching for a workaround. It turns out there is a fork of Qt Creator with Python support; however, I couldn't get it to compile properly on my system. And Google wasn't much help; most of the results I found were basically saying "If you want to use Python, you can't have the convenience of Qt Creator, but rather you have to do the whole thing manually."
However, I found a workaround: Leave the C++ in there, but rather than having it load and run the QML, have it load the Python file itself, and just run that. For those who are interested, here's my code:

C++:

#include <QtGui/QApplication>

#include "qmlapplicationviewer.h"

#include <libgen.h>

Q_DECL_EXPORT int main(int argc, char *argv[])

{

    enum { BUFFERSIZE = 1024 };

    char buf[BUFFERSIZE];

    ssize_t len = readlink("/proc/self/exe", buf, sizeof(buf)-1);

    if (len != -1) {

      buf[len] = '\0';

    }

    else {

      return 2;

    }

    char *dirc = strdup(buf);

    char *dname = dirname(dirc);

    strcat(dname, "/../qml/saera/main.py");

    char *arr[] = {"python", dname, NULL};

    execvp("python", arr);

}

Python code (main.py):

#!/usr/bin/python 

# -*- coding: utf-8 -*- 

import sys, os

from PySide import QtCore

from PySide.QtCore import *

from PySide.QtGui import *

from PySide.QtDeclarative import *

os.chdir(os.path.dirname(os.path.abspath(__file__)))

size = (800, 480)

app = QApplication(sys.argv)

view = QDeclarativeView()

window = QMainWindow()

window.resize(*size)

window.setCentralWidget(view)

view.setResizeMode(QDeclarativeView.SizeRootObjectToView)

view.setSource("main.qml")

window.show()

app.exec_()

Hidden methods in Python

How would one access variables programmatically in Python? Well, there are two dictionaries, one returned by globals() which contains all global variables, and one returned by locals() which contains all local variables. To demonstrate:

>>> a = 4

>>> locals()['a']

4

>>> locals()['b'] = 'spam'

>>> b

'spam'

>>>

Declaring a variable is the same thing as accessing its name in the locals() dictionary (or the globals() dictionary if the variable is declared global).
But what if we do this:
class a:
    b = 4
locals()['a.b'] = 'spam'
What will be the value of a.b?

Learning Python

I was cleaning out a flash drive and found the log I made two years ago when learning Python. I thought I'd post the first day here. Bear in mind that the only languages I knew beforehand were ActionScript and JavaScript.

2010/05/08 10:20: Started the Python tutorial. It's nice that you don't need to install anything extra. Hello world is simple but there are no parentheses. Interesting.