On 2023-09-03 18:10:29 +0200, Jan Erik Moström via Python-list wrote: > I want to replace some text using a regex-pattern, but before creating > replacement text I need to some file checking/copying etc. My code > right now look something like this: > > def fix_stuff(m): > # Do various things that involves for info > # that what's available in m > replacement_text = m.group(1) + global_var1 + global_var2 > return replacement_text > > and the call comes here > > global_var1 = "bla bla" > global_var2 = "pff" > > new_text = re.sub(im_pattern,fix_stuff,md_text) > > > The "problem" is that I've currently written some code that works but > it uses global variables ... and I don't like global variables. I > assume there is a better way to write this, but how?
If you use fix_stuff only inside one other function, you could make it
local to that function so that it will capture the local variables of
the outer function:
import re
def demo():
local_var1 = "bla bla"
local_var2 = "pff"
def fix_stuff(m):
# Do various things that involves for info
# that what's available in m
replacement_text = m.group(1) + local_var1 + local_var2
return replacement_text
for md_text in ( "aardvark", "barbapapa", "ba ba ba ba barbara ann"):
new_text = re.sub(r"(a+).*?(b+)", fix_stuff, md_text)
print(md_text, new_text)
demo()
hp
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_ | Peter J. Holzer | Story must make more sense than reality.
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| | | h...@hjp.at | -- Charles Stross, "Creative writing
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