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  1. def mapper():
  2.     log_pattern = re.compile(r'^(\S+) - - \[(\d{2})/(\w{3})/(\d{4}):(\d{2}):\d{2}:\d{2} .*\]')
  3.  
  4.     for line in sys.stdin:
  5.         match = log_pattern.match(line)
  6.         if match:
  7.             ip = match.group(1)
  8.             hour = match.group(5)  # Extract hour from timestamp
  9.             print(f"{hour}\t{ip}")
Success #stdin #stdout 0.09s 14104KB
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https://ideone.com/IfFMZd
language:
Python 3 (python  3.12)
created:
7 days ago
visibility:
public

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