--- a/eric6/Preferences/__init__.py Mon Jun 22 17:55:06 2020 +0200 +++ b/eric6/Preferences/__init__.py Tue Jun 23 17:24:18 2020 +0200 @@ -464,7 +464,7 @@ "DefaultEncoding": "utf-8", "DefaultOpenFilter": QCoreApplication.translate( - 'Lexers', 'Python Files (*.py *.py2 *.py3)'), + 'Lexers', 'Python Files (*.py *.py3)'), "DefaultSaveFilter": QCoreApplication.translate( 'Lexers', "Python3 Files (*.py)"), "AdditionalOpenFilters": [], @@ -1578,7 +1578,6 @@ # backward compatibility fot Qt < 5.10 pass - # Avoid nasty behavior of QSettings in combination with Py2 Prefs.settings.value("UI/SingleApplicationMode")