python之如何将欧元货币字符串转换为 float

我需要将欧洲大陆格式的字符串货币字符串转换为 float :

输入:

'6.150.593,22 €' 

意识到小数点是逗号，千位分隔符是句点。

输出:

6150593.22 

我读过这些问题，但它们只适用于美元货币和语言环境:

• How do I convert a currency string to a floating point number in Python?
• python: how to convert currency to decimal?

currency_euros='6.150.593,22 €' 
float(currency_euros[:-2]) 

Traceback (most recent call last): 
  File "<pyshell#28>", line 1, in <module> 
    float(currency_euros[:-2]) 
ValueError: could not convert string to float: '6.150.593,22' 

更新:按照@IrmendeJong 的回答:

>>> import locale 
>>> locale.setlocale(locale.LC_NUMERIC, "es") 
'es' 
>>> print(locale.currency(6150593.22)) 
6150593,22 € 
>>> money = '6.150.593,22 €' 
>>> locale.atof(money) 
Traceback (most recent call last): 
  File "<pyshell#68>", line 1, in <module> 
    locale.atof(money) 
  File "C:\Python35\lib\locale.py", line 318, in atof 
    return func(delocalize(string)) 
ValueError: could not convert string to float: '6150593.22 €' 
>>>  

我很惊讶 locale.currency() 可以正常工作，但它的倒数方法 locale.atof() 不起作用。

请您参考如下方法:

使用locale.atof https://docs.python.org/3/library/locale.html#locale.atof

>>> import locale 
>>> locale.setlocale(locale.LC_NUMERIC,"nl") 
'nl' 
>>> locale.atof("6.150.593,22") 
6150593.22