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  1. import re
  2. x = 'beef tomato chicken trump Madonna'
  3. n = 5
  4. right_word = '(?:\s+(\S+))?'
  5. regex_right = r'^\S*{}'.format(n*right_word)
  6. print(regex_right)
  7. m_right = re.search(regex_right, x)
  8. if m_right:
  9. 	print(m_right.groups())
Success #stdin #stdout 0.01s 23352KB
comments (?)
stdin 
Standard input is empty
stdout 
^\S*(?:\s+(\S+))?(?:\s+(\S+))?(?:\s+(\S+))?(?:\s+(\S+))?(?:\s+(\S+))?
('tomato', 'chicken', 'trump', 'Madonna', None)
https://ideone.com/OSqfRZ
language:
Python (cpython 2.7.16)
created:
8 years ago
visibility:
secret

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