blocks|key|1680983|text|请参阅locale模块。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1680984|这将进行货币(和日期)格式化。|1680985|>>>+import+locale
>>>+locale.setlocale(+locale.LC_ALL,+''+)
'English_United+States.1252'
>>>+locale.currency(+188518982.18+)
'$188518982.18'
>>>+locale.currency(+188518982.18,+grouping=True+)
'$188,518,982.18'|code-block|syntax|javascript|1680986|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/3/library/locale.html^0|3|6|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

See the <a href="https://docs.python.org/3/library/locale.html" rel="noreferrer">locale</a> module.
This does currency (and date) formatting.
<pre><code>&gt;&gt;&gt; import locale
&gt;&gt;&gt; locale.setlocale( locale.LC_ALL, '' )
'English_United States.1252'
&gt;&gt;&gt; locale.currency( 188518982.18 )
'$188518982.18'
&gt;&gt;&gt; locale.currency( 188518982.18, grouping=True )
'$188,518,982.18'
</code></pre>

blocks|key|1681196|text|2.7中的新特性|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1681197|>>>+'{:20,.2f}'.format(18446744073709551616.0)
'18,446,744,073,709,551,616.00'|code-block|syntax|javascript|1681198|http://docs.python.org/dev/whatsnew/2.7.html#pep-0378|offset|length|1681199|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|1H|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|T|8|@]|9|@$I|U|J|V|1|W]]|A|$]]|$1|K|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|H]]]]

<h2>New in 2.7</h2>

<pre><code>&gt;&gt;&gt; '{:20,.2f}'.format(18446744073709551616.0)
'18,446,744,073,709,551,616.00'
</code></pre>

<a href="http://docs.python.org/dev/whatsnew/2.7.html#pep-0378" rel="noreferrer">http://docs.python.org/dev/whatsnew/2.7.html#pep-0378</a>

blocks|key|1681386|text|不太确定为什么在网上(或在这个帖子上)没有提到它，但是Edgewall+guys的Babel包(和Django实用程序)对于货币格式化(和许多其他i18n任务)来说是非常棒的。它很好，因为它不需要像核心Python+locale模块那样在全局范围内做所有事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1681387|该操作给出的示例很简单：|1681388|>>>+import+babel.numbers
>>>+import+decimal
>>>+babel.numbers.format_currency(+decimal.Decimal(+"188518982.18"+),+"GBP"+)
£188,518,982.18|code-block|syntax|javascript|1681389|entityMap|0|LINK|mutability|MUTABLE|url|http://babel.pocoo.org/^0|15|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Not quite sure why it's not mentioned more online (or on this thread), but the <a href="http://babel.pocoo.org/" rel="noreferrer">Babel</a> package (and Django utilities) from the Edgewall guys is awesome for currency formatting (and lots of other i18n tasks). It's nice because it doesn't suffer from the need to do everything globally like the core Python locale module.

The example the OP gave would simply be:

<pre><code>&gt;&gt;&gt; import babel.numbers
&gt;&gt;&gt; import decimal
&gt;&gt;&gt; babel.numbers.format_currency( decimal.Decimal( "188518982.18" ), "GBP" )
£188,518,982.18
</code></pre>

blocks|key|1466231|text|Python3中的"{:0,.2f}".format(float(your_numeric_value))完成了这项工作；它给出了类似于以下代码行之一的内容：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1466232|10,938.29
10,899.00
10,898.99
2,328.99|code-block|syntax|javascript|1466233|entityMap^0|9|18|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

<code>"{:0,.2f}".format(float(your_numeric_value))</code> in Python 3 does the job; it gives out something like one of the following lines:

<pre><code>10,938.29
10,899.00
10,898.99
2,328.99
</code></pre>

blocks|key|1465885|text|我的语言环境设置似乎不完整，所以我不得不在这个问题之外寻找答案，并发现：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1465886|http://docs.python.org/library/decimal.html#recipes|offset|length|1465887|独立于操作系统|1465888|只是想在这里分享一下。|1465889|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1F|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@$D|S|E|T|1|U]]|A|$]]|$1|F|3|G|5|6|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|C]]]]

My locale settings seemed incomplete, so I had too look beyond this SO answer and found: 

<a href="http://docs.python.org/library/decimal.html#recipes" rel="noreferrer">http://docs.python.org/library/decimal.html#recipes</a>

OS-independent

Just wanted to share here.

blocks|key|1466009|text|如果您正在使用OSX，并且尚未设置您的语言环境模块设置，则第一个答案将不起作用，您将收到以下错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1466010|Traceback+(most+recent+call+last):File+"<stdin>",+line+1,+in+<module>+File+"/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/locale.py",+line+221,+in+currency
raise+ValueError("Currency+formatting+is+not+possible+using+"ValueError:+Currency+formatting+is+not+possible+using+the+'C'+locale.|code-block|syntax|javascript|1466011|要解决此问题，您必须使用以下命令：|1466012|locale.setlocale(locale.LC_ALL,+'en_US')|1466013|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you are using OSX and have yet to set your locale module setting this first answer will not work you will receive the following error:

<pre><code>Traceback (most recent call last):File "&lt;stdin&gt;", line 1, in &lt;module&gt; File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/locale.py", line 221, in currency
raise ValueError("Currency formatting is not possible using "ValueError: Currency formatting is not possible using the 'C' locale.
</code></pre>

To remedy this you will have to do use the following:

<pre><code>locale.setlocale(locale.LC_ALL, 'en_US')
</code></pre>

blocks|key|1466190|text|如果我是你，我会用BABEL：http://babel.pocoo.org/en/latest/index.html|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1466191|from+babel.numbers+import+format_decimal


format_decimal(188518982.18,+locale='en_US')|code-block|syntax|javascript|1466192|entityMap|0|LINK|mutability|MUTABLE|url|http://babel.pocoo.org/en/latest/index.html^0|F|17|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If I were you, I would use BABEL: <a href="http://babel.pocoo.org/en/latest/index.html" rel="noreferrer">http://babel.pocoo.org/en/latest/index.html</a>

<pre><code>from babel.numbers import format_decimal


format_decimal(188518982.18, locale='en_US')
</code></pre>

blocks|key|1465792|text|哦，那是一头有趣的野兽。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1465793|我花了相当长的时间来解决这个问题，不同的语言环境有三个主要的问题：-货币符号和方向-千分隔符-小数点|1465794|我已经编写了我自己的相当广泛的实现，它是kiwi+python框架的一部分，请在这里查看LGPL:ed源代码：|1465795|http://svn.async.com.br/cgi-bin/viewvc.cgi/kiwi/trunk/kiwi/currency.py?view=markup|offset|length|1465796|代码有点特定于Linux/Glibc，但应该不会太难适应windows或其他unixes。|1465797|安装完成后，您可以执行以下操作：|1465798|>>>+from+kiwi.datatypes+import+currency
>>>+v+=+currency('10.5').format()|code-block|syntax|javascript|1465799|然后，它将为您提供：|1465800|'$10.50'|1465801|或|1465802|'10,50+kr'|1465803|取决于当前选定的区域设置。|1465804|这篇文章比其他文章的主要观点是，它将与旧版本的python一起工作。locale.currency是在Python2.5中引入的。|1465805|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|2A|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1D|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1E|8|@]|9|@$H|1F|I|1G|1|1H]]|A|$]]|$1|J|3|K|5|6|7|1I|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1J|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|1K|8|@]|9|@]|A|$Q|R]]|$1|S|3|T|5|6|7|1L|8|@]|9|@]|A|$]]|$1|U|3|V|5|P|7|1M|8|@]|9|@]|A|$Q|R]]|$1|W|3|X|5|6|7|1N|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|P|7|1O|8|@]|9|@]|A|$Q|R]]|$1|10|3|11|5|6|7|1P|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]]|15|$16|$5|17|18|19|A|$1A|G]]]]

Oh, that's an interesting beast.

I've spent considerable time of getting that right, there are three main issues that differs from locale to locale:
 - currency symbol and direction
 - thousand separator
 - decimal point

I've written my own rather extensive implementation of this which is part of the kiwi python framework, check out the LGPL:ed source here:

<a href="http://svn.async.com.br/cgi-bin/viewvc.cgi/kiwi/trunk/kiwi/currency.py?view=markup" rel="nofollow noreferrer">http://svn.async.com.br/cgi-bin/viewvc.cgi/kiwi/trunk/kiwi/currency.py?view=markup</a>

The code is slightly Linux/Glibc specific, but shouldn't be too difficult to adopt to windows or other unixes.

Once you have that installed you can do the following:

<pre><code>&gt;&gt;&gt; from kiwi.datatypes import currency
&gt;&gt;&gt; v = currency('10.5').format()
</code></pre>

Which will then give you:

<pre><code>'$10.50'
</code></pre>

or

<pre><code>'10,50 kr'
</code></pre>

Depending on the currently selected locale.

The main point this post has over the other is that it will work with older versions of python. locale.currency was introduced in python 2.5.

blocks|key|1681483|text|#打印变量'Total:‘，格式如'9,348.237’|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1681484|print+('Total:',+++'{:7,.3f}'.format(zum1))|code-block|syntax|javascript|1681485|其中'{:7，.3f}‘是用于格式化数字的空格数，在本例中是带有3个小数点的一百万。然后添加'.format(zum1)。zum1是一个变量，它的大数字代表我的特定程序中所有数字的总和。变量可以是您决定使用的任何内容。|1681486|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

#printing the variable 'Total:' in a format that looks like this '9,348.237'

<pre><code>print ('Total:', '{:7,.3f}'.format(zum1))
</code></pre>

where the '{:7,.3f}' es the number of spaces for formatting the number in this case is a million with 3 decimal points.
Then you add the '.format(zum1). The zum1 is tha variable that has the big number for the sum of all number in my particular program. Variable can be anything that you decide to use.

blocks|key|1466259|text|灵感来自上面的代码:D|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1466260|def+money_format(value):
++++value+=+str(value).split('.')
++++money+=+''
++++count+=+1

++++for+digit+in+value[0][::-1]:
++++++++if+count+!=+3:
++++++++++++money+%2B=+digit
++++++++++++count+%2B=+1
++++++++else:
++++++++++++money+%2B=+f'{digit},'
++++++++++++count+=+1

++++if+len(value)+==+1:
++++++++money+=+('$'+%2B+money[::-1]).replace('$-','-$')
++++else:
++++++++money+=+('$'+%2B+money[::-1]+%2B+'.'+%2B+value[1]).replace('$-','-$')

++++return+money|code-block|syntax|javascript|1466261|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|$]]

Inspired by the code above :D
<pre><code>def money_format(value):
 value = str(value).split('.')
 money = ''
 count = 1

 for digit in value[0][::-1]:
 if count != 3:
 money += digit
 count += 1
 else:
 money += f'{digit},'
 count = 1

 if len(value) == 1:
 money = ('$' + money[::-1]).replace('$-','-$')
 else:
 money = ('$' + money[::-1] + '.' + value[1]).replace('$-','-$')

 return money
</code></pre>

blocks|key|1465862|text|我也来看看同样的东西，发现python-money还没有真正使用它，但也许两者的结合会更好|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1465863|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/python-money/^0|D|C|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I've come to look at the same thing and found <a href="http://code.google.com/p/python-money/" rel="nofollow noreferrer">python-money</a> not really used it yet but maybe a mix of the two would be good

blocks|key|1466085|text|在@Nate's+answer的帮助下，用于在函数中计算它的lambda|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1466086|converter+=+lambda+amount,+currency:+"%25s%25s%25s"+%25(
++++"-"+if+amount+<+0+else+"",+
++++currency,+
++++('{:%25d,.2f}'%25(len(str(amount))%2B3)).format(abs(amount)).lstrip())|code-block|syntax|javascript|1466087|然后,|1466088|>>>+converter(123132132.13,+"$")
'$123,132,132.13'

>>>+converter(-123132132.13,+"$")
'-$123,132,132.13'|1466089|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/3393776/1860929^0|1|E|0|0|0|0|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]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

A lambda for calculating it inside a function, with help from <a href="https://stackoverflow.com/a/3393776/1860929">@Nate's answer</a>

<pre><code>converter = lambda amount, currency: "%s%s%s" %(
 "-" if amount &lt; 0 else "", 
 currency, 
 ('{:%d,.2f}'%(len(str(amount))+3)).format(abs(amount)).lstrip())
</code></pre>

and then,

<pre><code>&gt;&gt;&gt; converter(123132132.13, "$")
'$123,132,132.13'

&gt;&gt;&gt; converter(-123132132.13, "$")
'-$123,132,132.13'
</code></pre>

I am looking to format a number like 188518982.18 to £188,518,982.18 using Python.

How can I do this?

Currency formatting in Python

Django

Python

Linux

我希望使用Python将一个像188518982.18这样的数字格式化为to 188,518,982.18。我该怎么做呢？

问Python中的货币格式
EN

回答 12

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