Return a name for the given key
        Argument:
        key -- Pokemon number id (int)

def get_name(self, key):
        '''Return a name for the given key
        Argument:
        key -- Pokemon number id (int)
        '''
        try:
            return self.nameDict[key]
        except IndexError as e:
            print 'IndexError {0}: {1}'.format(e.errno, e.strerror)