list - this simple function in python doesn't work properly -


i have problems these lines of program. i'm writing function in python takes list of lists , string input , returns "the name here" if second element of list in list of lists equal string given. in case list of list have 

railway = [["milan","zurich"],["zurich","bern"],["bern","berlin"],["berlin","copenaghen"]]

my function is: 

def travel( list , stringdestination):         = 0     elemento in range(len(list)):       if list[i][1] == stringdestination:           print "target reached"

when run: 

travel(railway, "bern")

it should display: "target reached" doesn't, doesn't show anything, why?

you never incrementing i. loop should be:

for pair in list:     if pair[1] == stringdestination:         print "target reached"

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