python字符串搜索替换 [英] python string search replace

问题描述

SSViewer::set_theme('bullsorbit'); 

这是我的字符串.我想在字符串 "SSViewer::set_theme('bullsorbit'); " 中搜索并将 'bullsorbit' 替换为另一个字符串.'bulllsorbit' 字符串是动态变化的.

this my string. I want search in string "SSViewer::set_theme('bullsorbit'); " and replace 'bullsorbit' with another string. 'bullsorbit' string is dynamically changing.

推荐答案

无法对此进行测试，因此您可能需要摆弄正则表达式(它们可能是其中的错误.)

Not in a situation to be able to test this so you may need to fiddle with the Regular Expression (they may be errors in it.)

import re
re.sub("SSViewer::set_theme\('[a-z]+'\)", "SSViewer::set_theme('whatever')", my_string)

这是你想要的吗?

刚刚测试过，这是一些示例输出:

Just tested it, this is some sample output:

my_string = """Some file with some other junk
SSViewer::set_theme('bullsorbit');
SSViewer::set_theme('another');
Something else"""

import re
replaced = re.sub("SSViewer::set_theme\('[a-z]+'\)", "SSViewer::set_theme('whatever')", my_string)
print replaced

产生:

Some file with some other junk
SSViewer::set_theme('whatever');
SSViewer::set_theme('whatever');
Something else

如果您想对文件执行此操作:

if you want to do it to a file:

my_string = open('myfile', 'r').read()

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