Bruno Desthuilliers wrote:
Gabriel Rossetti a écrit :
Hello,
I can't get getattr() to return nested functions,
Of course. Nested functions are not attributes of their container
function.
Ok
I tried this :
>>> def toto():
... def titi():
... pass
... f = getattr(toto, "titi")
... print str(f)
...
>>> toto()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 4, in toto
AttributeError: 'function' object has no attribute 'titi'
>>>
I thought that since functions are objects, that I could obtain it's
nested functions.
Well, there's probably a very hackish way, but it's not worth the
pain. The fact that functions are objects doesn't make nested
functions methods of that object. If what you really want are methods,
then you can write your own callable:
class _Test(object):
def request(self, params):
pass
def submit(self, params, values):
pass
def update(self, params, values):
pass
def delete(self, params):
pass
def __call__(self, action, *args):
return resultToXml(getattr(self, action)(*args))
_test = _Test()
Yes, very hackish :-)
But read the remaining before...
How come it doesn't work and what can I do to fix/replace it? I'm
using it in code that is like this :
def __test(self, action, *args):
def request(params):
pass
def submit(params, values):
pass
def update(params, values):
pass
def delete(params):
pass
result = getattr(__test, action)(*args)
return resultToXml(result)
where "action" is a string containing either "request", "submit",
"update", or "delete". I was using an evel() with this form :
result = eval(action + "(params, values)")
Wrong use case for eval, as usual.
but I didn't find that very clean.
indeed !-)
locals() is your friend.
def _test(self, action, *args):
def request(params):
pass
def submit(params, values):
pass
def update(params, values):
pass
def delete(params):
pass
result = locals()[action](*args)
return resultToXml(result)
Ok, thanks, that works :-), like I told Gabriel G., I keep on forgetting
locals() exists :-)
HTH
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