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  1. import re
  2. text = "this is a.match\nthis should also match.1234\nand this should 123.match\n\nthis should NOT match. Has space after period\nthis also should NOT match 1.23"
  3. print(re.sub(r'\.(?!(?<=\d\.)\d) ?', '. ', text))
Success #stdin #stdout 0.02s 9244KB
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Standard input is empty
stdout
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this is a. match
this should also match. 1234
and this should 123. match

this should NOT match. Has space after period
this also should NOT match 1.23
https://ideone.com/zn4bVB
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
secret

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