[Python-Dev] Declaring setters with getters

skip at pobox.com skip at pobox.com
Wed Oct 31 18:48:13 CET 2007

    Guido> I've come up with a relatively unobtrusive pattern for defining
    Guido> setters. Given the following definition:


I'm a pretty naive user of properties, so can you explain to me how what you
propose is better than

    class C(object):
        def __init__(self):
            self._encoding = None

        def get_encoding(self):
            return self._encoding

        def set_encoding(self, value):
            if value is not None:
                unicode("0", value)  # Test it
            self._encoding = value
        encoding = property(get_encoding, set_encoding)


    Guido> I'd also like to change property so that the doc string defaults
    Guido> to the doc string of the getter.

How about defaulting it to the first argument to property() which has a doc


More information about the Python-Dev mailing list