Update Python version for Windows

src/searchengine/searchengine.cpp

@@ -135,7 +135,7 @@ void SearchEngine::installPython() {
   DownloadThread *pydownloader = new DownloadThread(this);
   connect(pydownloader, SIGNAL(downloadFinished(QString,QString)), this, SLOT(pythonDownloadSuccess(QString,QString)));
   connect(pydownloader, SIGNAL(downloadFailure(QString,QString)), this, SLOT(pythonDownloadFailure(QString,QString)));
-  pydownloader->downloadUrl("http://python.org/ftp/python/2.7.2/python-2.7.2.msi");
+  pydownloader->downloadUrl("http://python.org/ftp/python/2.7.3/python-2.7.3.msi");
 }
 
 void SearchEngine::pythonDownloadSuccess(QString url, QString file_path) {