[openstack-dev] Use of local()

Jay Pipes jaypipes at gmail.com
Thu Feb 7 20:30:12 UTC 2013


Yes, and I'm saying I prefer the use of locals() over manually
specifying a dictionary.

-jay

On 02/07/2013 03:15 PM, Joe Gordon wrote:
> i18n support prevents us from doing something like:
> 
> 
> _("The server with id %()s has no key %s" % (s_id, m_key))
> 
> Because translations my reverse the sentence structures.  So the two
> options are:
> 
> 
> _("The server with id %(s_id)s has no key %(m_key)s" % locals())
> 
> and 
> 
> 
> msg = _("The server with id %(s_id)s has no key %(m_key)s")
> LOG.error(msg % {"s_id": "1234", "m_key": "imageId"})
> 
> 
> https://github.com/openstack/nova/blob/master/HACKING.rst#internationalization-i18n-strings
> 
> On Thu, Feb 7, 2013 at 11:49 AM, Jay Pipes <jaypipes at gmail.com
> <mailto:jaypipes at gmail.com>> wrote:
> 
>     I actually prefer the use of locals()... I find it cleaner that
>     specifying huge dictionaries to supply for string interpolation.
> 
>     -jay
> 
>     On 02/07/2013 02:33 PM, Andrew Laski wrote:
>     > On 02/07/13 at 10:23am, Nachi Ueno wrote:
>     >> Hi folks
>     >>
>     >> I wanna ask the opinion of use of local()
>     >> This function is mainly used for logging because of no need to
>     specify
>     >> actual parameters.
>     >>
>     >> However, the variable ,which code checker says it is not used, is
>     used
>     >> by local() sometimes.
>     >> so I prefer not to use local() .
>     >> I also believe to specify used parameter improves readability of
>     the code.
>     >
>     > I agree.  I prefer the explicitness of passing variables to string
>     > interpolation, and my style checker also picks up the variables
>     which it
>     > thinks are not used.
>     >
>     > I would support a check in hacking.py for this in Nova but personally
>     > don't think reviewers should spend time worrying about it.  Which
>     means
>     > that I think it's an uphill battle for projects without something like
>     > hacking.py.
>     >
>     >
>     >>
>     >> I appreciate if I could get the opinion on the community.
>     >>
>     >> Thanks
>     >> Nachi
>     >>
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