= Previewing a form =

On the `#pyqt` channel on [[http://freenode.net|Freenode]], `a_l_e` asked for a way to preview a main window form created in Qt Designer.

{{{
#!python

import sys

from PyQt4.QtGui import QApplication
from PyQt4.uic import loadUi

if __name__ == "__main__":

    app = QApplication(sys.argv)
    
    if len(app.arguments()) != 2:
    
        sys.stderr.write("Usage: %s <ui file>\n" % app.arguments()[0])
        sys.exit()
    
    window = loadUi(app.arguments()[1])
    window.show()
    sys.exit(app.exec_())
}}}