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  1. data = """toran
  2. —————————————————————————
  3.  
  4.  
  5. nscld
  6. —————————————————————————
  7. tcp        0      0 D
  8. tcp        0      0 D
  9. tcp        0      0 D
  10.  
  11. polkit
  12. —————————————————————————
  13.  
  14.  
  15. ganter
  16. —————————————————————————
  17. tcp        0      0 D
  18. tcp        0      0 D
  19. tcp        0      0 D
  20.  
  21. polkit
  22. —————————————————————————
  23. """.splitlines()
  24.  
  25. prev_line = ''  # Not strictly necessary, but avoids some warnings
  26. for line in data:
  27.     line = line.rstrip('\r')
  28.     if '—————————————————————————' in line:
  29.         heading = prev_line
  30.     elif line.startswith('tcp'):
  31.         if '—————————————————————————' in prev_line:
  32.             print(heading)
  33.             print(prev_line)
  34.         print(line)
  35.     elif not line and prev_line.startswith('tcp'):
  36.         print(line)
  37.     prev_line = line
Success #stdin #stdout 0.04s 9292KB
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stdin
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Standard input is empty
stdout
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nscld
—————————————————————————
tcp        0      0 D
tcp        0      0 D
tcp        0      0 D

ganter
—————————————————————————
tcp        0      0 D
tcp        0      0 D
tcp        0      0 D
https://ideone.com/lLKZOm
language:
Python 3 (python  3.9.5)
created:
5 years ago
visibility:
public

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