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file1.py

def doit(text):      
      import re
      matches=re.findall(r'\"(.+?)\"',text)
      # matches is now ['String 1', 'String 2', 'String3']
      return ",".join(matches)
doit(q)
q=q.split()
q
for i in q:
    print doit(i)
    
for i in q:
    if(doit(i)):
        print "found it at ",q.index(i)