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  1. import re
  2.  
  3. regex = r"\bCisco\s+((?:(?!\bSoftware\b)[A-Za-z ])*)\s.*?Software"
  4.  
  5. strings = [
  6.     "Cisco IOS XR Software, Version 5.3.4[Default]",
  7.     "Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.4(3)M3, RELEASE SOFTWARE (fc2)",
  8.     "Cisco Nexus Operating System (NX-OS) Software",
  9.     """Cisco IOS XE Software, Version 16.05.01b
  10. Cisco IOS Software [Everest], ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 16.5.1b, RELEASE SOFTWARE (fc1)"""
  11. ]
  12.  
  13. for s in strings:
  14.     matches = re.search(regex, s)
  15.     if matches:
  16.         print(matches.group(1))
Success #stdin #stdout 0.02s 9544KB
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IOS XR
IOS
Nexus Operating System
IOS XE
https://ideone.com/wx67ED
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

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