I was just working on some docs for Boost.Python and thought I'd write
down what happens when you try to write to a read-only property (I use
properties to expose C++ data members among other things). So:
>>> class X(object):
... def get(self): return 'x'
... l = property(get)
...
>>> x = X()
>>> x.l
'x'
>>> x.l = 1
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: can't set attribute
This struck me as a very poor error message, given that mechanism in
Boost.Python v1 used to say:
Traceback (innermost last):
File "<string>", line 1, in ?
AttributeError: 'l' attribute is read-only
Is it worth doing something about this?
--
David Abrahams * Boost Consulting
dave@boost-consulting.com * http://www.boost-consulting.com
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