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Nov 17th, 2017
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  1. import re;
  2. print re.findall(r"q(?=u)", "qqq queen quick qeel")
  3. > ['q', 'q'] # for queen and quick
  4.  
  5. import re;
  6. print re.findall(r"q(?!=u)", "qqq queen quick qeel")
  7. > ['q', 'q', 'q', 'q', 'q', 'q'] # every q matches
  8.  
  9. import re
  10. print(re.findall(r"q(?!u)", "qqq queen quick qeel"))
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