On Fri, 05 Apr 2013 16:20:58 +0200, Tobias Rzepka <tobias.rze...@gmail.com> wrote: > Hello Phil, > > I have encountered some odd behavior in the QSettings if I use the same > ini with Python 2 and Python 3. I was able to track the problem down to > a entry which is a complex list with dictionaries in it (in the example > the ViewProfiles entry from Eric5). > > There are two solutions I've found: > 1. Delete the ViewProfiles entry > 2. Access the ini without a default parameter of the QSettings.value method > > Detlev and I would like to implement the second solution because users > who use a old (<=5.3) and new version of Eric5 with different > interpreter should see merely no differences in there settings. > > The funny thing is, thats not only the default parameter of the value > method but also the surrounding. I've to store the settings in a class > (Prefs) and the second parameter has to be from another class, like in > the example. > > And if you uncomment the line SingleApplicationMode=false, everything is
> fine again (but also no solution, because the next access is going to > fail). > > Can you tell, if it's a odd behavior of QSettings or maybe of Python? > > I've attached a ini and a little code snippet from eric5, to demonstrate > the behavior. The error message is the following: > > Traceback (most recent call last): > File "D:\Projekte\Eric5\qsettings\py2_qsettings.py", line 54, in > <module> > Prefs2.uiDefaults['SingleApplicationMode']) > File "C:\Python27\lib\encodings\__init__.py", line 100, in > search_function > level=0) > File "C:\Python27\lib\pickle.py", line 1382, in loads > return Unpickler(file).load() > File "C:\Python27\lib\pickle.py", line 858, in load > dispatch[key](self) > File "C:\Python27\lib\pickle.py", line 886, in load_proto > raise ValueError, "unsupported pickle protocol: %d" % proto > ValueError: unsupported pickle protocol: 3 > > > Thanks. Tobias > > By the way: If I manage to read the ini and save it again, Python 2 > removes the quotation marks around the ViewProfiles values. Afterwards, > the settings file isn't readable in Python 3... Have you made your example too simple? It works fine for me. Phil _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
