python regex word repeat time -

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मुझे निम्न परिदृश्य मिली: 

  1) कार की टक्कर प्रभाव 3 सही लेन 2) 3 कार टक्कर प्रभाव दायें लेन

मुझे टक्कर की संख्या के बजाय लेन की संख्या समझनी है विशिष्ट होने के लिए मैं चाहता हूं कि संख्या और "सही लेन" से कम से कम दो \ bwords \ b के बीच में। 

  \ b (\ d) & lt; मैं 2 शब्दों को यहाँ सीमित करना चाहता हूं & gt; S * (लेन [एस]?) OR \ b (\ d) & lt; मैं यहां 10 वर्णों को सीमित करना चाहता हूं & gt; \ s * (लेन [एस]?)

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लेटरहाइड का उपयोग करना: 

  आयात करें s1 = "1) कार की टकराव 3 सही लेन" s2 = "2 ) 3 कार टक्कर प्रभाव सही लेन "प्रिंट रिफंडल (" (\ d +) (? = (?: \ S + \ w +) {, 2} \ s + सही लेन) ", s1) प्रिंट पुनः। (" (" \ D +) (? = (?: \ S + \ w +) {, 2} \ s + सही लेन) ", s2)

देता है: 

  ['3'] []

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