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  1. import re
  2. rx = r"^(?:[a-z]{3}\d{3}\.)?(ca.*)"
  3. strs = ["dal001.caxxxxx.test.com","caxxxx.test.com"]
  4. for s in strs:
  5.   m = re.search(rx, s)
  6.   if m:
  7.     print( m.group(1) )
Success #stdin #stdout 0.02s 9608KB
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Standard input is empty
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caxxxxx.test.com
caxxxx.test.com
https://ideone.com/hS6lz5
language:
Python 3 (python  3.9.5)
created:
3 years ago
visibility:
public

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