python - Concatenate lines in two files -


निम्न दो फाइलों पर विचार करें:

file1.txt: 

  File1line1 file1line2 file1line3   
 file2.txt  
  file2line1 file2line2 file2line2   
 मैं file1 में प्रत्येक पंक्ति को जोड़ना चाहता हूँ फ़ाइल 2 में इसी लाइन के साथ।  
 यह कैसे अजगर में किया जा सकता है।  
 आप मान सकते हैं कि लाइनों की संख्या दोनों फ़ाइलों में बराबर है।   
 
 
  ज़िप ()  के साथ आप आसानी से ऐसा कर सकते हैं:  
  एफएच 1, ओपन ('file2.txt') के रूप में एफएच 2: ओपन के रूप में ('file1.txt') खोलें, लाइन 1 के लिए, लाइन 2 में ज़िप (एफएच 1, एफएच 2): फ़ाइल 1 से # लाइन 1, फ़ाइल 2 से लाइन 2   
 यदि आप पायथन 2 का प्रयोग कर रहे हैं तो यह दोनों फाइलों को स्मृति में लोड करता है; जरूरत के रूप में लाइनों को पढ़ने के बजाय  itertools.izip ()  का उपयोग करें:  <पूर्व>  से itertools खोलने के साथ izip आयात करें ('file1.txt') fh1 के रूप में, खुला ('file2 .txt ') के रूप में एफएच 2: लाइन 1 के लिए, लाइन 2 में izip (fh1, fh2): # 1 लाइन से file1, file2 से line2   
 पायथन 3 में,  zip ()  व्यवहार के रूप में  itertools.izip () ।

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