Hello, the results of the following code boggle me. i would have expected that y.data is not affected by setting z.data.
Regards Jan --code--------------------------------------------- class Test: def __init__(self, x={}): self.data = x #end def #end class Test y = Test() z = Test() print 'y.data = ',y.data print 'z.data = ',z.data z.data['B'] = 2 # this statement also sets y.data z.data= {'A': 1} # this statement doesn't print 'y.data = ',y.data print 'z.data = ',z.data --code end------------------------------------------- --output----------------------------------------------- >"C:\Program Files\Python25\pythonw" -u "thestrangething.py" y.data = {} z.data = {} y.data = {'B': 2} z.data = {'A': 1} -- http://mail.python.org/mailman/listinfo/python-list