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Re: the global keyword:

From MRAB <python@mrabarnett.plus.com>
Newsgroups comp.lang.python
Subject Re: the global keyword:
Date 2016-06-12 01:09 +0100
Message-ID <mailman.5.1465690157.2288.python-list@python.org> (permalink)
References <edb72d55-3a44-45f8-8122-b86d62e837c3@googlegroups.com> <1465689049.1080307.634938641.5F600BCB@webmail.messagingengine.com> <b2e32f44-d253-309d-dbd0-886bfcb7c7fa@mrabarnett.plus.com>

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On 2016-06-12 00:50, Random832 wrote:
> On Sat, Jun 11, 2016, at 19:44, Marcin Rak wrote:
>> So my question is, how the heck is it possible that I get 5 as the last
>> value printed? the global test_var (global to Test.py) I set to 44 when I
>> ran some_function()???  does anyone have a clue they could throw my way?
>
> Importing a variable from a module copies its value into your own
> module's variable. Updates to the source module's variable will not be
> reflected in your module.
>
Not true. Importing doesn't copy the value.

Importing a name creates a new name in the local scope that refers to 
the same object that the imported name referred to.

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Thread

the global keyword: Marcin Rak <mrak@sightlineinnovation.com> - 2016-06-11 16:44 -0700
  Re: the global keyword: Random832 <random832@fastmail.com> - 2016-06-11 19:50 -0400
    Re: the global keyword: Marcin Rak <mrak@sightlineinnovation.com> - 2016-06-11 17:12 -0700
      Re: the global keyword: Random832 <random832@fastmail.com> - 2016-06-11 21:27 -0400
    Re: the global keyword: Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-11 20:15 -0700
      Re: the global keyword: Random832 <random832@fastmail.com> - 2016-06-12 14:46 -0400
  Re: the global keyword: MRAB <python@mrabarnett.plus.com> - 2016-06-12 01:09 +0100
    Re: the global keyword: Marcin Rak <mrak@sightlineinnovation.com> - 2016-06-11 17:13 -0700
      Re: the global keyword: Ned Batchelder <ned@nedbatchelder.com> - 2016-06-11 20:41 -0700
  Re: the global keyword: Random832 <random832@fastmail.com> - 2016-06-11 21:26 -0400
    Re: the global keyword: Steven D'Aprano <steve@pearwood.info> - 2016-06-12 13:38 +1000
      Re: the global keyword: Ned Batchelder <ned@nedbatchelder.com> - 2016-06-11 20:48 -0700
        Re: the global keyword: Marcin Rak <mrak@sightlineinnovation.com> - 2016-06-12 11:31 -0700
  Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-12 20:07 +0100
    Re: the global keyword: Ned Batchelder <ned@nedbatchelder.com> - 2016-06-12 12:25 -0700
      Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-12 22:10 +0100
        Re: the global keyword: Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-19 16:35 +0200
          Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-19 22:20 +0100
            Re: the global keyword: Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-20 13:14 +0200
              Re: the global keyword: Steven D'Aprano <steve@pearwood.info> - 2016-06-20 22:15 +1000
                Re: the global keyword: Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-20 15:04 +0200
                Re: the global keyword: Random832 <random832@fastmail.com> - 2016-06-20 09:29 -0400
                Re: the global keyword: Steven D'Aprano <steve@pearwood.info> - 2016-06-21 00:53 +1000
                Re: the global keyword: Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-21 10:08 +0200
                Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-21 11:41 +0100
                Re: the global keyword: Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-06-21 13:01 +0200
        Re: the global keyword: Joel Goldstick <joel.goldstick@gmail.com> - 2016-06-19 13:16 -0400
          Re: the global keyword: Lawrence D’Oliveiro <lawrencedo99@gmail.com> - 2016-06-19 22:50 -0700
          Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-20 11:21 +0100
            Re: the global keyword: Steven D'Aprano <steve@pearwood.info> - 2016-06-20 22:03 +1000
    Re: the global keyword: Rick Johnson <rantingrickjohnson@gmail.com> - 2016-06-21 10:04 -0700
      Re: the global keyword: Random832 <random832@fastmail.com> - 2016-06-21 13:15 -0400
        Re: the global keyword: Rick Johnson <rantingrickjohnson@gmail.com> - 2016-06-21 15:20 -0700
          Re: the global keyword: Chris Angelico <rosuav@gmail.com> - 2016-06-22 08:32 +1000
            Re: the global keyword: Rick Johnson <rantingrickjohnson@gmail.com> - 2016-06-21 16:43 -0700
          Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-22 00:15 +0100
            Re: the global keyword: Rick Johnson <rantingrickjohnson@gmail.com> - 2016-06-21 17:24 -0700
              Re: the global keyword: BartC <bc@freeuk.com> - 2016-06-22 10:24 +0100
                Re: the global keyword: Steven D'Aprano <steve@pearwood.info> - 2016-06-24 11:00 +1000
                Re: the global keyword: Chris Angelico <rosuav@gmail.com> - 2016-06-24 11:19 +1000
                Re: the global keyword: eryk sun <eryksun@gmail.com> - 2016-06-24 02:19 +0000
          Re: the global keyword: Rick Johnson <rantingrickjohnson@gmail.com> - 2016-06-21 16:50 -0700

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