Updating/deleting string variables in a class through the class' methods (functions) in python -

i new user python , trying update class have called player(self, name, position) through new class call api(object). in class api(), have crud approach in creating player, retrieving player, updating player, , lastly, deleting player. struggling method in update , delete function.

for update, calling self.retrieve_player[name] since method reads existing players initialized dictionary (found in init file of class api.

also, main() function @ bottom instantiating these methods creating instance of object, calling api , specified methods. e.g.:

c = api() c.create_player('buster posey', 'catcher') c.retrieve_player('james') c.update_player('buster posey', 'firstbaseman') 

the code struggling outputting updated object created:

    def update_player(self, name, position):          updated_player = self.retrieve_player(name)         updates = self.create_player(name, position)         updated_player = updates         return updates         print('updated now!')      def delete_player(self, name, position):         del_player = self.retrieve_player[name]         if name in del_player:             del self._team[key] 

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for update_player, playing concept since mentality updating variables like:

a = "apple" b = "orange" x = x = b #now apple replaced value orange 

e.g.:

i created player (buster posey, catcher) in c.create_player. want update player reflect new position, e.g. (buster posey, firstbaseman) through method update_player.

afterwards, want delete player altogether using method delete_player.

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right now, when use current method defined update_player, created_player , updated_player... python prints: buster posey, catcher buster posey, firstbaseman instead of printing buster posey, firstbaseman.

more code:

class player(object):      def __init__(self, name, position):         self._name = name         self._position = position         class api(object):      playercount = 0     managercount = 0      def __init__(self):         self._team = {} #acts db         self._index = 0         api.playercount += 1         api.managercount += 1  ##this crud method entity player            def create_player(self, name, position):         new_player = player(name, position)         self._team[self._index] = new_player         self._index += 1         print(name, position)      def retrieve_player(self, name): # need iterate through dictionary         person in self._team.itervalues():             if person._name == name:                 return person                 print(name)             elif person._name != name:                  print('sorry, gent not exist.')  

tweaked code, think looking for.

class player(object):      def __init__(self, name, position):         self._name = name         self._position = position      def __repr__(self):         return "%s --> %s" % (self._name, self._position)    class api(object):      playercount = 0     managercount = 0      def __init__(self):         self._team = {} #acts db         self._index = 0         api.playercount += 1         api.managercount += 1      ##this crud method entity player            def create_player(self, name, position):         new_player = player(name, position)         self._team[self._index] = new_player         self._index += 1         print(name, position)      def retrieve_player(self, name): # need iterate through dictionary          index, person in self._team.items():              if person._name == name:                  print('found guy.. : ' + str(name))                  return person          print('no team member name : ' + str(name))      def update_player(self, name, position):          # predicting trying update position         updated_player = self.retrieve_player(name)         if updated_player:             temp_pos = updated_player._position             updated_player._position = position             print('updated %s position %s %s' %( name, str(temp_pos), str(position)))             return updated_player         else:             print('no team member name : ' + str(name))      def delete_player(self, name, position):         index, person in self._team.items():             print(index, person._name)             if person._name == name , person._position == position:                 self._team[index] = none                 del person                 print('deleted team member : ' + str(name))                 return 1         print('no team member name : ' + str(name))  team = api() team.create_player('a', 'catcher') team.create_player('b', 'firstbatsman') print(team._team)  player = team.retrieve_player('a') print(player._name) team.delete_player('b', 'firstbatsman') print(team._team)