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From: ram@zedat.fu-berlin.de (Stefan Ram)
Newsgroups: comp.lang.python
Subject: Re: Passing info to function used in re.sub
Date: 3 Sep 2023 16:53:02 GMT
Organization: Stefan Ram
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=?utf-8?q?Jan_Erik_Mostr=C3=B6m?= <lists@mostrom.pp.se> writes:
>def fix_stuff(m):
>	# that what's available in m
>	replacement_text = m.group(1) + global_var1 + global_var2
>	return replacement_text
....
>new_text = re.sub(im_pattern,fix_stuff,md_text)

  You can use a closure:

import re

def make_replace( was_global_1, was_global_2 ):
    def replace( matcher ):
        return matcher.group( 1 )+ was_global_1 + was_global_2
    return replace

replace = make_replace( "a", "b" )

print( re.sub( r'(.)', replace, 'x' ))

  . Note how I wrote code one can actually execute. 
  You could have done this too! 

  Or, partial application:

import functools
import re

def replace( was_global_1, was_global_2, matcher ):
    return matcher.group( 1 )+ was_global_1 + was_global_2

print( re.sub( r'(.)', functools.partial( replace, 'a', 'b' ), 'x' ))

  .