Update Python version requirements

src/gui/mainwindow.cpp

@@ -1494,13 +1494,16 @@ void MainWindow::on_actionSearchWidget_triggered()
         bool res = false;
 
         if ((pythonVersion == 2) || (pythonVersion == 3)) {
-            // Check python minimum requirement: 2.7.0/3.3.0
+            // Check Python minimum requirement: 2.7.9 / 3.3.0
             QString version = Utils::Misc::pythonVersionComplete();
             QStringList splitted = version.split('.');
-            if (splitted.size() > 1) {
+            if (splitted.size() > 2) {
                 int middleVer = splitted.at(1).toInt();
-                if (((pythonVersion == 2) && (middleVer < 7)) || ((pythonVersion == 3) && (middleVer < 3))) {
-                    QMessageBox::information(this, tr("Old Python Interpreter"), tr("Your Python version %1 is outdated. Please upgrade to latest version for search engines to work. Minimum requirement: 2.7.0/3.3.0.").arg(version));
+                int lowerVer = splitted.at(2).toInt();
+                if (((pythonVersion == 2) && (middleVer < 7))
+                    || ((pythonVersion == 2) && (middleVer == 7) && (lowerVer < 9))
+                    || ((pythonVersion == 3) && (middleVer < 3))) {
+                    QMessageBox::information(this, tr("Old Python Interpreter"), tr("Your Python version (%1) is outdated. Please upgrade to latest version for search engines to work.\nMinimum requirement: 2.7.9 / 3.3.0.").arg(version));
                     m_ui->actionSearchWidget->setChecked(false);
                     Preferences::instance()->setSearchEnabled(false);
                     return;