系统日期格式化不会拾取django区域设置 [英] System date formatting not picking up django locale

问题描述

尝试了解L10N的实现到Django，这里是我的设置

Trying to understand L10N implementation into Django, Here are my settings

LANGUAGE_CODE = 'fr-FR'
USE_L10N = True

如果我尝试

>>> datetime.datetime.strptime('2012-05-30 15:30', '%Y-%m-%d %H:%M')
      .strftime('%c')

它会给我'Wed May 30 15:30:00 2012'那是 EN 区域设置。但是 doc 说：

It will give me 'Wed May 30 15:30:00 2012' that is the EN locale. However the doc is saying:

[...]访问相同内容但不同语言的两个用户将看到以不同方式格式化的日期和数字字段，具体取决于当前语言环境的格式[ ...]

[...] Two users accessing the same content, but in different language, will see date and number fields formatted in different ways, depending on the format for their current locale [...]

他们在谈论为各自浏览器设置的区域设置？

如果没有，怎么例如，我可以将其设置为法语吗？

Are they talking about the locale set for their respective browser ?
If not, how can I set it to french by default for example ?

推荐答案

Django的本地化在Django模板和表单的上下文中可以工作，可以不要链接到Python的内部日期时间表示：

Django's localization works in the context of Django templates and forms, and can not travel up the chain to Python's internal datetime representations:

When using Django's formatting system, dates and numbers on templates 
will be displayed using the format specified for the current locale. 
...Django will also use localized formats when parsing data in forms. 

所以如果你有 USE_L10N = True 区域 FR 的用户将 10,45 输入到表单中，这将被解释为意味着 10.45 在英文十进制系统中。类似地，模板标签（如 {{value | date：SHORT_DATE_FORMAT}} 的输出将根据用户的区域设置而有所不同。

So if you have USE_L10N = True and a user with the region FR enters 10,45 into a form, that will be interpreted to mean 10.45 in the English decimal system. Similarly, the output of a template tag like {{ value|date:"SHORT_DATE_FORMAT" }} will vary based on the user's locale.

但是，Python内部的 strftime（'％c'）不会访问Django的设置，而是指在机器上设置的区域设置，它已安装。您可以检索并更改Python指向的区域设置：

However, the Python internal strftime('%c') doesn't access Django's settings, and instead refers to the locale set on the machine on which it is installed. You can retrieve and change the locale settings Python points to with:

>>> datetime.datetime.strptime('2012-05-30 15:30', '%Y-%m-%d %H:%M').strftime('%c')
'Wed May 30 15:30:00 2012'
>>> import locale
>>> locale.getlocale()
(None, None)
>>> locale.getdefaultlocale()
('en_US', 'UTF-8')
>>> locale.setlocale(locale.LC_ALL, "fr_FR.UTF-8")
'fr_FR.UTF-8'
>>> datetime.datetime.strptime('2012-05-30 15:30', '%Y-%m-%d %H:%M').strftime('%c')
'Mer 30 mai 15:30:00 2012'

或通过设置环境变量 $ LANG 。

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