Hi, Your test program works for me on PythonCE 2.4.3.
Luke ----- Original Message ----- From: "Matt S." <[EMAIL PROTECTED]> To: <pythonce@python.org> Sent: Saturday, May 27, 2006 3:47 AM Subject: [PythonCE] pickle problem on 2.3.4 pythonCE (for wxPython) > Hi, > > I'm trying to make a data collection UI for Windows CE using the > wxPyCE distribution (which uses Python 2.3.4) found at, > > http://www.traybor.com/PythonCE/ > > It's gone well so far but I'm running into a serious data pickling > problem. Ideally I would like to pickle a class instance. > > Saving and loading the pickled class works fine on my PC (Python 2.4x), > > *pickleDump.py* > f = open('pickle_file.pyp', 'r') > pickle.dump(my_class_instance, f) > > *pickleLoad.py* > f = open('saved_pickle.pyp', 'r') > my_pickled_class_instance = pickle.load(f) > > In my UI module the pickling are methods in a class. Also, "my_class" > is actually, "another_module.top_level_class.data," wherein ".data" is > a dictionary with keys that are person names and values that are the > corresponding person instance. > > Realizing that I'm probably breaking the pickling rules with pickling > my data class, I changed "my_class" in *pickleDump.py* to a simple > dictionary... and it still failed on CE. Fortunately, simplifying my > data to a simple list does pickle. So, in the worst case I can > convert my data into lists (not pretty so if you have a better > workaround idea I'd really appreciate it). > > Here's the traceback from my attempt to load the pickled dictionary, > > Traceback (most recent call last): > File "\Program Files\python\dev\pickleLoad.py", line 10, in ? > var = pickle.load(f) > File "binaries\lib\pickle.py", line 1390, in load > File "binaries\lib\pickle.py", line 872, in load > File "binaries\lib\pickle.py", line 985, in load_string > LookupError: no codec search functions registered: can't find encoding > > Here are my test modules, > > *pickleDump.py* > > import pickle, traceback, sys > > f = open('test.txt','w') > error = open('dump_error.txt','w') > sys.stderr = error > log = open('dump_out.txt','w') > sys.stdout = log > > #var = [n for n in range(10)] > var = {'parm1':1, 'parm2':'2a'} > > try: > > pickle.dump(var,f) > print 'Pickled dumped OK in,', __file__ > except: > traceback.print_exc() > print 'Pickle dump failed! in', __file__ > > f.close() > > > *pickleLoad.py* > > import pickle, sys, traceback > > e = open('load_error.txt','w') > sys.stderr = e > s = open('load_out.txt','w') > sys.stdout = s > > try: > f = open('test.txt','r') > var = pickle.load(f) > print 'Pickle loaded OK in,', __file__ > print var > except: > > traceback.print_exc() > print 'Pickle not loaded in,', __file__ > > Many thanks for your help, > Matt _______________________________________________ PythonCE mailing list PythonCE@python.org http://mail.python.org/mailman/listinfo/pythonce
