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Re: Behaviour-based interface/protocol implementation?

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  Re: Behaviour-based interface/protocol implementation? Alan Franzoni <mailing@franzoni.eu> - 2011-01-27 22:12 +0100

#55932 — Re: Behaviour-based interface/protocol implementation?

On Thu, Jan 27, 2011 at 8:58 PM, Ethan Furman <ethan@stoneleaf.us> wrote:
> When you signature check, do you mean counting the number of arguments, or
> actually checking argument types?

In order to check for argument types I should either assume type
annotation (python 3 only, optional) or parse the docstring for the
method, which might not be available or be out of sync.

I just want to check for method name, number and/or names of the
arguments. It might not be trivial in python because the very same
argument can be passed either as a positional or a kw argument, so

def method1(self, a, b):
    ...

def method1(self, c, d):
     ...

could satisfy or not the very same interface, depending whether the
args are passed as postional or kw.


-- 
Alan Franzoni
--
contact me at public@[mysurname].eu

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