Passing new fields to an object
Peter Otten
__peter__ at web.de
Fri Jun 12 12:17:09 EDT 2015
Paulo da Silva wrote:
> I would like to do something like this:
>
> class C:
> def __init__(self,**parms):
> ...
>
> c=C(f1=1,f2=None)
>
> I want to have, for the object
> self.f1=1
> self.f2=None
>
> for an arbitrary number of parameters.
>
> What is the best way to achieve this?
Use a dict ;)
While I'd recommend that you spell out the possible arguments here is one
way to not obey my advice:
>>> import types
>>> class C(types.SimpleNamespace):
... pass
...
>>> c = C(f1=1, f2=None)
>>> c
C(f1=1, f2=None)
If you want to do it manually you can either use
for name, value in parms.items():
setattr(self, name, value)
or the less general
self.__dict__.update(parms)
Again, if you don't know the names in advance the appropriate data structure
is a dict.
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