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  1. import re
  2. line = '    2501	12345678910	12345678910	40m Test Content\t Here.	SMxx  x x x x x x x'
  3. rx = re.compile(r'^((?:[^\t\n]*\t){3})(.*?)(?=\t\s*SM)')
  4. print(rx.sub(lambda x: f"{x.group(1)}{x.group(2).replace(chr(9), '<TAB WAS HERE>')}", line))
Success #stdin #stdout 0.03s 9668KB
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Standard input is empty
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    2501	12345678910	12345678910	40m Test Content<TAB WAS HERE> Here.	SMxx  x x x x x x x
https://ideone.com/RELp2p
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
secret

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