python - Having trouble replacing with -

i need replace 1 symbol in string letter, decoder game, code have created. need develop part of program when inputs symbol , letter replaces symbol letter , saves list, keep doing untill symbols have been replaced create word.

the list of encoded words:

 #+/084&"     #3*#%#+    8%203:    ,1$&   !-*%    .#7&33&    #*#71%    &-&641'2    #))85    9&330*   

the list of words uncoded:

 acquired    almanac    insult     joke    hymn    gazelle    amazon    eyebrows    affix     vellum   

clues:

a# m* n% 

code:

#import section import random import string  class game():      def __init__(self):         words_open = open('words.txt')         self.words = (words_open.read())                        self.fixwords = self.words         solved_open = open('solved.txt')         self.solved = (solved_open.read())      def menu_display(self):         #display menu         self.menud = ('''       menu          1. start game   2. quit game    please select 1 or 2''')         self.menu()      def menu(self):         print self.menud         #ask player choose option         self.menu_choice = raw_input("  >>> ")         print                 self.menu_options()      def menu_options(self):             #when menu option selected         if self.menu_choice == '1':             self.s_game()         elif self.menu_choice == '2':             pass         else:             print "not valid input"             self.menu()      def s_game(self):          print 'words:'         print self.words         self.clues()      def clues(self):         clue = raw_input('do want clues? please enter yes or no '                          '>>> ')         clue = clue.upper()         print clue         clues_open = open('clues.txt')         self.cluesclues = (clues_open.read())                 if clue == 'yes':             print '''words:             '''             print self.words             print 'clues:'             print self.cluesclues             self.sorting()         elif clue == 'no':             print self.words             self.sorting()         else:             print "input not valid"             self.clues()       def sorting(self):         #if self.fixwords == 0:             #self.fixwords = (words_open.read())         #else:             #pass         self.symbol = raw_input("what symbol replace? >>> ")         if self.symbol in self.fixwords:             self.nletter = raw_input("that symbol valid, letter swap >>> ")              self.nletter.upper()             #self.fixwords.replace(self.symbol, self.letter[, max])             #self.fixwords.replace(self.symbol, self.nletter)             string.replace(self.fixwords, self.symbol, self.nletter.upper)             print self.fixwords             print self.cluesclues             self.prechange()         elif self.symbol not in self.fixwords:             print "that symbol not valid or has been changed"             self.sorting()               def prechange(self):                 self.change = raw_input("do want change letter letter? yes or no >>> ")         self.change = self.change         if self.change == "yes":             self.changing()         elif self.change == "no":             self.sorting()         else:             print "that not valid input"             self.prechange()      def changing(self):         self.chanlet = raw_input("what letter replace? >>> ")         if self.chanlet in self.fixwords:             self.letchan = raw_input("that letter valid, letter swap >>> ")              self.fixwords = string.replace(self.fixwords, self.chanlet, self.letchan)                     print self.fixwords             self.sorting()         elif self.chanlet not in self.fixwords:             print "that letter not exist"             self.changing()    game = game() game.menu_display()  

you can use replace() function. can replace character in string if exists several times. have each time user select symbol replace , letter, loop on list of encoded words , replace symbol letter :

symbol = input("enter symbol replace : ") letter = input("enter letter : ") in range(0, len(encoded_list)) :      encoded_list[i] = encoded_list[i].replace(symbol, letter, len(encoded))