encoded_string.py

# encoded String 
def encodedstring(s):
        vow=["a","e","i","o","u"]
        newstr=''
        newlist=[]
        newlist2=[]
        for alphabet in s:
            if alphabet not in vow:
                newstr += alphabet
        print newstr
        removeduplicatesforstring=set(newstr)
        stringtoencode="".join(removeduplicatesforstring)
        print stringtoencode
        lookup= {"a":1,
            "b":2,
            "c":3,
            "d":4,
            "e":5,
            "f":6,
            "g":7,
            "h":8,
            "i":9,
            "j":10,
            "k":11,
            "l":12,
            "m":13,
            "n":14,
            "o":15,
            "p":16,
            "q":17,
            "r":18,
            "s":19,
            "t":20,
            "u":21,
            "v":22,
            "w":23,
            "x":24,
            "y":25,
            "z":26}
  
        reverse_lookup= {1:"a",
            2:"b",
            3:"c",
            4:"d",
            5:"e",
            6:"f",
            7:"g",
            8:"h",
            9:"i",
            10:"j",
            11:"k",
            12:"l",
            13:"m",
            14:"n",
            15:"o",
            16:"p",
            17:"q",
            18:"r",
            19:"s",
            20:"t",
            21:"u",
            22:"v",
            23:"w",
            24:"x",
            25:"y",
            26:"z"}
        for alphabet in stringtoencode:
          finalvalue=lookup[alphabet] + lookup[alphabet] +1 
          print "final----",finalvalue
          if finalvalue > 26:
            finalvalue= finalvalue -26
            newlist.append(finalvalue)
          else:
            newlist.append(finalvalue)
        print newlist
        
        for f in newlist:
          newlist2.append(reverse_lookup[f])
        return "".join(newlist2)
          
 
  
  
  
print encodedstring("xyxyxyxyxyxyxyxyxyxioioioioioioioio")