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From: Ben Finney <ben+python@benfinney.id.au>
Subject: Re: Can global variable be passed into Python function?
Date: Sun, 02 Mar 2014 21:59:26 +1100
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Xref: csiph.com comp.lang.python:67426

Marko Rauhamaa <marko@pacujo.net> writes:

> Ben Finney <ben+python@benfinney.id.au>:
>
> > The unreliability is “will objects defined elsewhere have a different
> > identity?”
>
> That question is not interesting in my context, and has no bearing on
> the correctness of the program.

You keep vacillating between two positions: pick one for the context.

Either you care about object identity in this context, and the above
observation is relevant.

Or, you don't care about object identity in this context, and you should
avoid ‘is’ and use ‘==’.

But you cannot have both.

-- 
 \        “You know I could rent you out as a decoy for duck hunters?” |
  `\                                                     —Groucho Marx |
_o__)                                                                  |
Ben Finney