如何在Python中将货币字符串转换为浮点数? [英] How do I convert a currency string to a floating point number in Python?

问题描述

我有一些字符串表示具有特定货币格式的数字，例如:

I have some strings representing numbers with specific currency format, for example:

money="$6,150,593.22"

我想将此字符串转换为数字

I want to convert this string into the number

6150593.22

实现此目标的最佳方法是什么?

What is the best way to achieve this?

推荐答案

尝试一下:

from re import sub
from decimal import Decimal

money = '$6,150,593.22'
value = Decimal(sub(r'[^\d.]', '', money))

这具有一些优点，因为它使用 Decimal 而不是float(这更适合表示货币)，并且通过不对特定货币符号进行硬编码来避免任何语言环境问题.

This has some advantages since it uses Decimal instead of float (which is better for representing currency) and it also avoids any locale issues by not hard-coding a specific currency symbol.

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