Python regex to remove substrings inside curly braces

Question

I have a line which has lots of words and characters. I just want to remove the part which is included in double curly braces

{{ }}

I tried ?={{.*}} but I am not getting anything.

That's because Python doesn't deal with curly braces. See `from __future__ import braces` (I'm kidding, for anyone new to Python) — SomeKittens, May 17 '12 at 21:09
So it is nested but between two consecutive braces are continuous and nothing in between them — Shruts_me, May 18 '12 at 00:03

score 8 · Accepted Answer · answered May 17 '12 at 21:11

8

Try this:

import re
s = re.sub('{{.*?}}', '', s)

Note that { and } are usually special characters in regular expressions and should usually be escaped with a backslash to get their literal meaning. However in this context they are interpreted as literals.

See it working online: ideone

answered May 17 '12 at 21:11

Mark Byers

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Note that the second argument in `re.sub(...)` can be passed a function to. This function will be called for each substitution with a matches object. The returned string from this function will be the replacement for that substitution. This might be useful when processing variables in a string, or things alike. – Tim Visée Nov 02 '17 at 15:43

score 4 · Answer 2 · answered May 17 '12 at 21:23

4

If you are trying to extract the text from inside the curly braces, try something like:

import re 
s = 'apple {{pear}} orange {banana}'
matches = re.search(r'{{(.*)}}', s)
print matches.group(1)

group(1) will contain the string 'pear'

answered May 17 '12 at 21:23

Beamery

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I Want to remove them from the existing line – Shruts_me May 17 '12 at 21:27
hence this matching wont help in my case – Shruts_me May 18 '12 at 00:07

Python regex to remove substrings inside curly braces

2 Answers2

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