On 27 Jan, 14:41, D HANNEY <spam2...@nney.com> wrote:
[...]
> >>> class NoGuardProxy(object):
>
> ... def __init__(self, t):
> ... self.t = t
> ... def __enter__(self):
> ... return self
> ... def __exit__(self, type, value, traceback):
> ... return False
> ... def __getattr__(self):
> ... return self.t.__getattr__(self)
> ...>>> show(NoGuardProxy(StringIO.StringIO("blah1\nblah2\nblah3\n")))
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "<stdin>", line 3, in show
> TypeError: 'NoGuardProxy' object is not iterable
>
> #
> # Now I'm stuck.
> # Can anyone help?
> #
See [1] for an explanation. Here is an idea: you could get round that
by generating a class on the fly, if you don't mind changing the class
of the object (untested):
def noguardproxy(obj):
class NoGuardProxy(type(obj)):
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
return False
obj.__class__ = NoGuardProxy
return obj
If you want to keep obj untouched, you could add the line
obj = copy(obj)
before changing the class.
--
Arnaud
[1] http://docs.python.org/reference/datamodel.html#new-style-special-lookup
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