替换括号/方括号内的文本时re.sub（re模块python3）出错[重复]

Question

我没有兴趣用 {{pl|[Krzyżowa pałac]}} 替换 [Krzyżowa pałac] 以外的任何内容，但我遇到了问题，因为文本包含在 [] 中。如果文本用括号括起来，也会导致错误。

import re

text = """Hello stack community ! I just wanna replace the following line
[Krzyżowa pałac]
but there's an error if it's enclosed within parenthesis/ square bracket
Can you please help me ! PLZ
}}"""

pagetext = text

regex = r"(\[(?:.*?)\])"
matches = re.finditer(regex, text, re.MULTILINE)

for matchNum, match in enumerate(matches, start=1):
        Desctext = match.group(1)


Desctext = Desctext.rstrip()
lang = "pl"
new_text = "{{" + lang + "|" + Desctext + "}}"


HereIsAnError = re.sub(Desctext, new_text, pagetext, 1)

print(HereIsAnError)

我来了

Hell{{pl|[Krzyżowa pałac]}} stack community ! I just wanna replace the following line
[Krzyżowa pałac]
but there's an error if it's enclosed within parenthesis / square bracket
Can you please help me !

但我需要以下输出

Hello stack community ! I just wanna replace the following line
{{pl|[Krzyżowa pałac]}}
but there's an error if it's enclosed within parenthesis / square bracket
Can you please help me !

在https://repl.it/repls/HarmoniousMadeupBases试试这个

Answer 1

用replace代替re.sub

import re

text = """Hello stack community ! I just wanna replace the following line
[Krzyżowa pałac]
but there's an error if it's enclosed within parenthesis/ square bracket
Can you please help me ! PLZ
}}"""

pagetext = text

regex = r"(\[(?:.*?)\])"
matches = re.finditer(regex, text, re.MULTILINE)

for matchNum, match in enumerate(matches, start=1):
        Desctext = match.group(1)


Desctext = Desctext.rstrip()
lang = "pl"
new_text = "{{" + lang + "|" + Desctext + "}}"

HereWasAnError = pagetext.replace(Desctext, new_text, 1)

print(HereWasAnError)