Hello,

Recently, thanks to the help from Andreas, I am investigating on a broken job
for the translation import of Horizon project [1].
The actual error message is
: openstack_dashboard/locale/ko_KR/LC_MESSAGES/django.po:8273: a format specification for argument 'req' doesn't exist in 'msgstr[0]'


And then I have found that this error was from a string in horizon - openstack_dashboard [2]

            error_message = ungettext_lazy(
                'The requested instance cannot be launched as you only '
                'have %(avail)i of your quota available. ',
'The requested %(req)i instances cannot be launched as you '
                'only have %(avail)i of your quota available.',
                count)
            params = {'req': count,
                      'avail': available_count}

In i18n translation infrastructure, only one of two (for singular and plural) strings should be selected, translated, saved, and finally imported back to Horizon project as [1].
However, the first string only used "%(avail)i" string variable,
and the second string used both "%(req)i" and "%(avail)i" string variables.

Since one Korean translator selected the first string, there will be no "%(req)i" in Korean po file, which generates such an error. So my suggestion is to use the same string variables for both two strings when we use ungettext_lazy function.

Is it a bug from Horizon? Would it be other issues when we change like
: from 'The requested instance cannot be launched as you only ' to 'The requested %(req)i instance cannot be launched as you only '?


[1] http://logs.openstack.org/periodic/horizon-propose-translation-update/c038aab/console.html#_2016-09-16_07_37_22_312092 [2] http://git.openstack.org/cgit/openstack/horizon/tree/openstack_dashboard/dashboards/project/instances/workflows/create_instance.py#n214


With many thanks,

/Ian

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