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Re: Is this a good way to work with init and exception

From Cecil Westerhof <Cecil@decebal.nl>
Newsgroups comp.lang.python
Subject Re: Is this a good way to work with init and exception
Date 2015-07-20 00:19 +0200
Organization Decebal Computing
Message-ID <87615fyem2.fsf@Equus.decebal.nl> (permalink)
References (1 earlier) <mailman.711.1437310769.3674.python-list@python.org> <87r3o4xfhx.fsf@Equus.decebal.nl> <mailman.733.1437329515.3674.python-list@python.org> <87io9gx8tb.fsf@Equus.decebal.nl> <mailman.743.1437340103.3674.python-list@python.org>

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On Sunday 19 Jul 2015 23:08 CEST, Chris Angelico wrote:

> On Mon, Jul 20, 2015 at 5:10 AM, Cecil Westerhof <Cecil@decebal.nl> wrote:
>>> I think it's fine, then. As long as it makes absolutely no sense
>>> to have two separately-initialized twitter connections, and as
>>> long as it's okay for two separate modules to both import this and
>>> to then share state, then what you have is fine.
>>
>> I do not see myself doing this, but I like to know ‘everything’.
>> When I have a program with two different modules that both import
>> this, they would get in each-others way? How?
>
> If two modules import the same module, they get two references to
> that same module, not two separate module instances. Since your
> parameters appear only to affect the initialization itself, this is
> not likely to be a problem (it's not like you'll need to
> authenticate with two different sets of credentials, for instance),
> but it will mean that the second one will import an
> already-initialized module. That's why I suggested the try_init
> function which would quietly return an immediate success if the
> module had already been initialized. But if this isn't going to be
> an issue, then your code's fine.

Good to know. I would expect two different instances.

I agree that in my case it would not be a problem, but I put the code
on GitHub:
    https://github.com/CecilWesterhof/PythonLibrary/blob/master/twitterDecebal.py
I should do my best to circumvent nasty surprises for users of the
code. Someone else could use several Twitter accounts at the same
time. Is there a way to do this?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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Thread

Is this a good way to work with init and exception Cecil Westerhof <Cecil@decebal.nl> - 2015-07-19 12:35 +0200
  Re: Is this a good way to work with init and exception Chris Angelico <rosuav@gmail.com> - 2015-07-19 22:59 +1000
    Re: Is this a good way to work with init and exception Cecil Westerhof <Cecil@decebal.nl> - 2015-07-19 18:46 +0200
      Re: Is this a good way to work with init and exception Chris Angelico <rosuav@gmail.com> - 2015-07-20 04:11 +1000
        Re: Is this a good way to work with init and exception Cecil Westerhof <Cecil@decebal.nl> - 2015-07-19 21:10 +0200
          Re: Is this a good way to work with init and exception Chris Angelico <rosuav@gmail.com> - 2015-07-20 07:08 +1000
            Re: Is this a good way to work with init and exception Cecil Westerhof <Cecil@decebal.nl> - 2015-07-20 00:19 +0200
              Re: Is this a good way to work with init and exception Chris Angelico <rosuav@gmail.com> - 2015-07-20 08:40 +1000
                Re: Is this a good way to work with init and exception Cecil Westerhof <Cecil@decebal.nl> - 2015-07-20 01:27 +0200

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