在Python中删除HTML标记和字符串

Question

I'm pretty new with regular expression. Basically, I would like to use regular expression to remove <sup> ... </sup> from the string using regular expression.

Input:

<b>something here</b><sup>1</sup><sup>,3</sup>, another here<sup>1</sup>

Output:

<b>something here</b>, another here

Is that a short way and description on how to do it?

note This question might be duplicated. I tried but couldn't find solution.

Answer 1

You could do something like this:

import re
s = "<b>something here</b><sup>1</sup><sup>,3</sup>, another here<sup>1</sup>"

s2 = re.sub(r'<sup>(.*?)</sup>',"", s)

print s2
# Prints: <b>something here</b>, another here

Remember to use (.*?) , as (.*) is what they call a greedy quantifier and you would obtain a different result:

s2 = re.sub(r'<sup>(.*)</sup>',"", s)

print s2
# Prints: <b>something here</b>

Answer 2

The hard part is knowing how to do a minimal rather than maximal match of the stuff between the tags. This works.

import re
s0 = "<b>something here</b><sup>1</sup><sup>,3</sup>, another here<sup>1</sup>"
prog = re.compile('<sup>.*?</sup>')
s1 = re.sub(prog, '', s0)
print(s1)
# <b>something here</b>, another here