Mine

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# Please read the COPYING file.
#

from PyQt4 import QtCore, QtGui
from converter4 import Ui_LitConverter
import os
import sys
import string
import glob
from check_convertlit import check_clit

import gettext
t = gettext.translation('litconverter', fallback=True)
_ = t.ugettext

class MyForm(QtGui.QMainWindow):

    def __init__(self,parent = None,modal = 0,fl = 0):
        QtGui.QMainWindow.__init__(self, None)
        self.filename = None
        self.directory = None
        self.file_n = None
        self.progressBar = None
        self.ui = Ui_LitConverter()
        self.ui.setupUi(self)
        check_clit(self)


    def browseFile(self):
        filename = QtGui.QFileDialog.getOpenFileName(None,
            _("Select a LIT file"),
            _("Select a LIT file"),
            _("LIT File (*.lit)"))
        if unicode(filename) != '':
            self.filename = unicode(filename)
            self.ui.lineEdit.setText(filename)
        else:
            print "no file"

    def selectDir(self):
        directory = QtGui.QFileDialog.getExistingDirectory(None,
            _("Choose a directory to extract the files"))
        if unicode(directory) != '':
            self.directory = unicode(directory)
            self.ui.lineEdit_3.setText(directory)
        else:
            print _("no directory")

    def convert(self, filename, file_name):
        print "doing the conversion"
        for x in os.popen("clit '%s' '%s'" % (filename, file_name), 'r').readlines():
            u = unicode( self.ui.textBrowser.toPlainText() )
            u = u + x
            self.ui.textBrowser.setPlainText(u)
            self.progressBar = QtGui.QProgressBar()
            self.progressBar.setValue(100)
            QtGui.QApplication.processEvents()

    def doConvert(self):
        if self.filename is not None and self.directory is not None:
            filedir = '%s' % self.filename 
            file_n = filedir.split('/')[-1]
            file_n = file_n.split('.')[0]
            file_name = os.path.join(self.directory, file_n)
            if not os.path.exists(file_name):
                os.mkdir('%s' % file_name)
                self.convert(self.filename, file_name)
                if self.ui.checkBox.isChecked():
                    print file_name
                    l = glob.glob('"%s"/"*.htm"' % file_name)
                    if len(l) > 0:
                        os.system('kfmclient exec "%s"' % l[0])
                else:
                    print _('No html file!')

            else:
                ask_over_write = QtGui.QMessageBox.question(None,
                    _("Warning"),
                    _("""There is already a directory with the same name.\n Do you want to continue?"""),
                    _("&Yes"),
                    _("&No"),
                    _("&Browse"),
                    0, -1)
                if ask_over_write == False:
                    self.convert(self.filename, file_name)
                    if self.ui.checkBox.isChecked():
                        l = glob.glob("%s/*.htm" % file_name)
                        if len(l) > 0 :
                            os.system("kfmclient exec %s" % l[0])
                    else:
                        print _("No html file!")
                else:
                    if ask_over_write == True:
                        print _("user skipped")
                    else:
                       directory = QtGui.QFileDialog.getExistingDirectory(None,
                       _("Choose a directory to extract the files"),
                       _("Choose a directory to extract the files"))
                       if unicode(directory) != '':
                           self.directory = unicode(directory)
                           self.ui.lineEdit_3.setText(directory)
                       else:
                           print _("no directory")
        else:
            QtGui.QMessageBox.warning(None,
                _("Warning..."),
                _("You didnt select a file and/or a directory"))
            pass

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    LitConverter = MyForm()
    LitConverter.show()
    sys.exit(app.exec_())