> `while i < len(c)` instead of `while 1` >
hi, i modified codes to be i<len(c) but it still goes into the except part. tq c=('01101') i=-1 try: while i<len(c): i=c.index('0',i+1) print "Lane fail",i except ValueError: print "All Lanes PASS" pass Result: >>> Lane fail 0 Lane fail 3 All Lanes PASS >>>
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