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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Thu, 24 Sep 2015 16:10:17 -0600
Subject: Re: Modifying signature of ctor in class
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On Thu, Sep 24, 2015 at 2:28 PM, Joseph L. Casale
<jcasale@activenetwerx.com> wrote:
> I have a class factory where I dynamically add a constructor to the class output.
> The method is a closure and works just fine, however to accommodate the varied
> input its signature is (*args, **kwargs).
>
> While I modify the doc strings, the ctor sig is not optimal. Without building
> this a string and using eval, is there anything that can be done about this?

In Python 3.3+ you can attach a Signature object to a function by
setting the function's __signature__ attribute. In Python 3.4+ the
__signature__ is used in generating the signature for PyDoc and
help().