使用str.replace从pandas中的字符串中删除括号 [英] Removing parenthesis from a string in pandas with str.replace

问题描述

我有一个国家列表，其中有些国家在括号后有空格，例如玻利维亚(多民族国).

I have a a list of countries where some have a space an parenthesis afterfor example, Bolivia (Plurinational State of).

为什么我下面的代码不能只保留玻利维亚?

Why doesn't my code below work to only keep Bolivia?

   energy['Country'] = energy['Country'].str.replace("Bolivia (Plurinational State of)","Bolivia")

推荐答案

str.replace 使用正则表达式来执行替换.必须对括号进行转义以将它们保留为简单字符:

str.replace uses regex to perform replacements. The parentheses must be escaped to keep them as simple characters:

energy['Country'].str.replace("Bolivia \(Plurinational State of\)","Bolivia")

您可以像这样自动转义:

You can automate escaping like this:

import re
energy['Country'].str.replace(re.escape('Bolivia (Plurinational State of)'),"Bolivia")

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