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  1. import re
  2. s = "aba\naaa\naba\naaa\naba"
  3. print( "\n".join([st for st in s.splitlines() if 'b' not in st]) )
  4. print("---")
  5. print( re.sub(r'^[^b\r\n]*b.*[\r\n]*', '', s, flags=re.M) )
  6. print("---")
  7.  
Success #stdin #stdout 0.02s 27712KB
comments (?)
stdin 
Standard input is empty
stdout 
aaa
aaa
---
aaa
aaa

---
https://ideone.com/tPfKKH
language:
Python 3 (python  3.12)
created:
7 years ago
visibility:
secret

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