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  1. import re
  2. text = 'One T933 two, three35.4. four 9,3 8.5 five M2x13 M4.3x2.1 aa88aa'
  3. print( re.sub(r'[.,](?!(?<=\d.)\d)', '', re.sub(r'(?<=[^\W\d_])(?<![MmXx])(?=\d)|(?<=\d)(?=[^\W\d_])', ' ', text)).lower() )
Success #stdin #stdout 0.03s 9472KB
comments (?)
stdin 
Standard input is empty
stdout 
one t 933 two three 35.4 four 9,3 8.5 five m2 x13 m4.3 x2.1 aa 88 aa
https://ideone.com/uY9IOs
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
secret

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