acooke....@gmail.com wrote:
Hi,
(I searched back and found some previous discussion on generator
attributes that seemed to be related to callable generators - this is
NOT that, as far as I can tell)
I want to associate some data with a generator. This is in a
decorator function, as it happens; the generator is being returned and
I want to add some info that is useful for debugging later. I have
tried modifying both .__doc__ and an arbitrary attribute, but the
first is read-only, and the second does not exist (ie you cant just
add one by writing to it; same error with setattr).
I realise I could create my own wrapper that implements __next__
That is what you are going to have to do. Immutable python builtins work
that way:
py> i = 4
py> i.bob = 2
------------------------------------------------------------
Traceback (most recent call last):
File "<ipython console>", line 1, in <module>
<type 'exceptions.AttributeError'>: 'int' object has no attribute 'bob'
py> i.__doc__ = 'I am an int'
------------------------------------------------------------
Traceback (most recent call last):
File "<ipython console>", line 1, in <module>
<type 'exceptions.AttributeError'>: 'int' object attribute '__doc__' is
read-only
James
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