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  1. import re
  2. p = re.compile(r'^(text[ ]*=[ ]*\')([^\']*)(\')')
  3. strs = ["text = 'a,b,c'", "text = 'a'", "text = ''"]
  4. print([p.sub(lambda x: x.group(1) + (x.group(2) + ",d" if x.group(2) else "d" ) + x.group(3), s) for s in strs])
Success #stdin #stdout 0.01s 8968KB
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Standard input is empty
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["text = 'a,b,c,d'", "text = 'a,d'", "text = 'd'"]
https://ideone.com/Q4b1CB
language:
Python (cpython 2.7.16)
created:
9 years ago
visibility:
secret

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