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Groups > comp.lang.python > #100958

Re: Cannot get the value from dogpile.cache from different modules.

From Peter Otten <__peter__@web.de>
Newsgroups comp.lang.python
Subject Re: Cannot get the value from dogpile.cache from different modules.
Date 2015-12-29 17:17 +0100
Organization None
Message-ID <mailman.54.1451405867.11925.python-list@python.org> (permalink)
References <7c8df879-b03a-4323-90c5-3221dd1eced2@googlegroups.com> <e94e9346-cccd-44cb-b889-75c308921555@googlegroups.com>

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xeon Mailinglist wrote:

> On Tuesday, December 29, 2015 at 11:16:10 AM UTC, xeon Mailinglist wrote:
>> 1. How do I create a global variable that can be accessed by all classes?
>> 
>> 2. I am using `dogpile.cache` to store data in the cache [1], but if I
>> set and get the same key from different modules, I don't get the value.
>> Here is an example in [2]. The value than I get is `NO_VALUE.NO_VALUE`.
>> Why this happens?

>>     region = make_region().configure('dogpile.cache.memory')

The memory backend wraps a python dict whose contents are only available to 
a single script and forgotten when that script ends.

My crystal ball tells me that you want to communicate between processes 
rather than "modules" and need a backend that implements persistence. 
"dogpile.cache.file" seems to be the one without dependencies outside the 
standard library.


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Thread

Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 03:15 -0800
  Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 07:20 -0800
    Re: Cannot get the value from dogpile.cache from different modules. Peter Otten <__peter__@web.de> - 2015-12-29 17:17 +0100
      Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 09:13 -0800
        Re: Cannot get the value from dogpile.cache from different modules. Peter Otten <__peter__@web.de> - 2015-12-29 18:33 +0100
          Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 09:38 -0800
            Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 10:22 -0800
            Re: Cannot get the value from dogpile.cache from different modules. Peter Otten <__peter__@web.de> - 2015-12-29 20:11 +0100
    Re: Cannot get the value from dogpile.cache from different modules. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-12-29 17:14 +0000
      Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 09:23 -0800
      Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 09:27 -0800
        Re: Cannot get the value from dogpile.cache from different modules. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-12-29 19:22 +0000
          Re: Cannot get the value from dogpile.cache from different modules. xeon Mailinglist <xeonmailinglist@gmail.com> - 2015-12-29 14:57 -0800
            Re: Cannot get the value from dogpile.cache from different modules. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-12-29 23:30 +0000
        Re: Cannot get the value from dogpile.cache from different modules. Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-12-29 17:49 -0500

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