blocks|key|1458658|text|我找不到Django的方式，但我在我的模型中找到了一种python的方式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1458659|def+format_price(self):
++++import+locale
++++locale.setlocale(locale.LC_ALL,+'')
++++return+locale.format('%25d',+self.price,+True)|code-block|syntax|javascript|1458660|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Well I couldn't find a Django way, but I did find a python way from inside my model:

<pre><code>def format_price(self):
 import locale
 locale.setlocale(locale.LC_ALL, '')
 return locale.format('%d', self.price, True)
</code></pre>

blocks|key|1673775|text|如果您不想涉及区域设置，这里有一个格式化数字的函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1673776|def+int_format(value,+decimal_points=3,+seperator=u'.'):
++++value+=+str(value)
++++if+len(value)+<=+decimal_points:
++++++++return+value
++++#+say+here+we+have+value+=+'12345'+and+the+default+params+above
++++parts+=+[]
++++while+value:
++++++++parts.append(value[-decimal_points:])
++++++++value+=+value[:-decimal_points]
++++#+now+we+should+have+parts+=+['345',+'12']
++++parts.reverse()
++++#+and+the+return+value+should+be+u'12.345'
++++return+seperator.join(parts)|code-block|syntax|javascript|1673777|从这个函数创建一个custom+template+filter非常简单。|offset|length|1673778|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.djangoproject.com/en/dev/howto/custom-template-tags/#writing-custom-template-filters^0|0|0|9|M|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

If you don't want to get involved with locales here is a function that formats numbers:

<pre><code>def int_format(value, decimal_points=3, seperator=u'.'):
 value = str(value)
 if len(value) &lt;= decimal_points:
 return value
 # say here we have value = '12345' and the default params above
 parts = []
 while value:
 parts.append(value[-decimal_points:])
 value = value[:-decimal_points]
 # now we should have parts = ['345', '12']
 parts.reverse()
 # and the return value should be u'12.345'
 return seperator.join(parts)
</code></pre>

Creating a <a href="http://docs.djangoproject.com/en/dev/howto/custom-template-tags/#writing-custom-template-filters" rel="noreferrer">custom template filter</a> from this function is trivial.

blocks|key|1673808|text|Django贡献的humanize应用程序可以做到这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1673809|{%25+load+humanize+%25}
{{+my_num%7Cintcomma+}}|code-block|syntax|javascript|1673810|确保将'django.contrib.humanize'添加到settings.py文件的INSTALLED_APPS列表中。|style|CODE|1673811|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.djangoproject.com/en/dev/ref/contrib/humanize/#ref-contrib-humanize^0|9|8|0|0|0|3|P|V|B|19|E|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@$A|10|B|11|K|L]|$A|12|B|13|K|L]|$A|14|B|15|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

Django's contributed <a href="http://docs.djangoproject.com/en/dev/ref/contrib/humanize/#ref-contrib-humanize" rel="noreferrer">humanize</a> application does this:

<pre><code>{% load humanize %}
{{ my_num|intcomma }}
</code></pre>

Be sure to add <code>'django.contrib.humanize'</code> to your <code>INSTALLED_APPS</code> list in the <code>settings.py</code> file.

blocks|key|1458825|text|请注意，更改区域设置是在整个进程范围内进行的，并且不是线程安全的(低，可能会产生副作用，也可能会影响在同一进程中执行的其他代码)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1458826|我的建议是:查看Babel包。与Django模板集成的一些方法是可用的。|offset|length|1458827|entityMap|0|LINK|mutability|MUTABLE|url|http://babel.edgewall.org/^0|0|8|5|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Be aware that changing locale is process-wide and not thread safe (iow., can have side effects or can affect other code executed within the same process).

My proposition: check out the <a href="http://babel.edgewall.org/" rel="nofollow noreferrer">Babel</a> package. Some means of integrating with Django templates are available.

blocks|key|1458887|text|关于内德·巴切尔德的解决方案，这里有两个小数点和一个美元符号。这可以放在my_app/templatetags/my_filters.py这样的地方|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1458888|from+django+import+template
from+django.contrib.humanize.templatetags.humanize+import+intcomma

register+=+template.Library()

def+currency(dollars):
++++dollars+=+round(float(dollars),+2)
++++return+"$%25s%25s"+%25+(intcomma(int(dollars)),+("%250.2f"+%25+dollars)[-3:])

register.filter('currency',+currency)|code-block|syntax|javascript|1458889|然后你就可以|1458890|{%25+load+my_filters+%25}
{{my_dollars+%7C+currency}}|1458891|entityMap^0|10|X|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

Regarding Ned Batchelder's solution, here it is with 2 decimal points and a dollar sign. This goes somewhere like <code>my_app/templatetags/my_filters.py</code>

<pre><code>from django import template
from django.contrib.humanize.templatetags.humanize import intcomma

register = template.Library()

def currency(dollars):
 dollars = round(float(dollars), 2)
 return "$%s%s" % (intcomma(int(dollars)), ("%0.2f" % dollars)[-3:])

register.filter('currency', currency)
</code></pre>

Then you can

<pre><code>{% load my_filters %}
{{my_dollars | currency}}
</code></pre>

blocks|key|1673976|text|在其他答案的基础上，要将此扩展到浮点数，您可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1673977|{%25+load+humanize+%25}
{{+floatvalue%7Cfloatformat:2%7Cintcomma+}}|code-block|syntax|javascript|1673978|文档：floatformat、intcomma。|offset|length|style|CODE|1673979|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.djangoproject.com/en/stable/ref/templates/builtins/#floatformat|1|https://docs.djangoproject.com/en/stable/ref/contrib/humanize/#intcomma^0|0|0|3|B|F|8|3|B|0|F|8|1|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]|$I|11|J|12|K|L]]|9|@$I|13|J|14|1|15]|$I|16|J|17|1|18]]|A|$]]|$1|M|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]|U|$5|P|Q|R|A|$S|V]]]]

Building on other answers, to extend this to floats, you can do:

<pre><code>{% load humanize %}
{{ floatvalue|floatformat:2|intcomma }}
</code></pre>

Documentation: <a href="https://docs.djangoproject.com/en/stable/ref/templates/builtins/#floatformat" rel="noreferrer"><code>floatformat</code></a>, <a href="https://docs.djangoproject.com/en/stable/ref/contrib/humanize/#intcomma" rel="noreferrer"><code>intcomma</code></a>.

blocks|key|1458984|text|还不确定为什么没有提到这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1458985|{%25+load+l10n+%25}

{{+value%7Clocalize+}}|code-block|syntax|javascript|1458986|https://docs.djangoproject.com/en/1.11/topics/i18n/formatting/#std:templatefilter-localize|offset|length|1458987|您也可以通过调用localize(number)在您的Django代码(模板外部)中使用它。|style|CODE|1458988|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|2I|0|0|8|G|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|X|8|@]|9|@$I|Y|J|Z|1|10]]|A|$]]|$1|K|3|L|5|6|7|11|8|@$I|12|J|13|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|H]]]]

Not sure why this has not been mentioned, yet:

<pre><code>{% load l10n %}

{{ value|localize }}
</code></pre>

<a href="https://docs.djangoproject.com/en/1.11/topics/i18n/formatting/#std:templatefilter-localize" rel="nofollow noreferrer">https://docs.djangoproject.com/en/1.11/topics/i18n/formatting/#std:templatefilter-localize</a>

You can also use this in your Django code (outside templates) by calling <code>localize(number)</code>.

blocks|key|1459027|text|如果有人偶然发现了这一点，你可以在Django+2.0.2中使用|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1459028|Thousand+separator。请务必阅读format+localization。|1459029|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.djangoproject.com/en/2.0/ref/settings/#thousand-separator|1|https://docs.djangoproject.com/en/2.0/topics/i18n/formatting/^0|H|C|0|0|I|0|O|J|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@$9|V|A|W|1|X]|$9|Y|A|Z|1|10]]|E|$]]|$1|H|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

In case someone stumbles upon this, in <code>Django 2.0.2</code> you can use this

<a href="https://docs.djangoproject.com/en/2.0/ref/settings/#thousand-separator" rel="nofollow noreferrer">Thousand separator</a>. Be sure to read <a href="https://docs.djangoproject.com/en/2.0/topics/i18n/formatting/" rel="nofollow noreferrer">format localization</a> as well.

I'm trying to format numbers. Examples:

<pre><code>1 =&gt; 1
12 =&gt; 12
123 =&gt; 123
1234 =&gt; 1,234
12345 =&gt; 12,345
</code></pre>

It strikes as a fairly common thing to do but I can't figure out which filter I'm supposed to use.

Edit: If you've a generic Python way to do this, I'm happy adding a formatted field in my model.

Format numbers in django templates

Django

Python

我在试着格式化数字。示例：1     => 112    => 12123   => 1231234  => 1,23412345 => 12,345这是一件很常见的事情，但是我不知道我应该使用哪个过滤器。编辑:如果您有一种通用的Python方法可以做到这一点，我很乐意在我的模型中添加一个格式化的字段。

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