Update Python URLs

src/base/utils/foreignapps.cpp

@@ -251,7 +251,7 @@ PythonInfo Utils::ForeignApps::pythonInfo()
     if (!pyInfo.isValid()) {
 #if defined(Q_OS_UNIX)
         // On Unix-Like Systems python2 and python3 should always exist
-        // https://legacy.python.org/dev/peps/pep-0394/
+        // https://www.python.org/dev/peps/pep-0394/
         if (testPythonInstallation("python3", pyInfo))
             return pyInfo;
         if (testPythonInstallation("python2", pyInfo))

src/gui/mainwindow.cpp

@@ -2049,7 +2049,7 @@ void MainWindow::installPython()
     setCursor(QCursor(Qt::WaitCursor));
     // Download python
     const QString installerURL = ((QSysInfo::windowsVersion() >= QSysInfo::WV_VISTA)
-                                  ? "https://www.python.org/ftp/python/3.5.2/python-3.5.2.exe"
+                                  ? "https://www.python.org/ftp/python/3.6.6/python-3.6.6.exe"
                                   : "https://www.python.org/ftp/python/3.4.4/python-3.4.4.msi");
     Net::DownloadHandler *handler = Net::DownloadManager::instance()->download(
                                         Net::DownloadRequest(installerURL).saveToFile(true));