how to add value to a tuple?

Question

I\'m working on a script where I have a list of tuples like (\'1\',\'2\',\'3\',\'4\'). e.g.:

list = [(\'1\',\'2\',\'3\',\'4\'),
        (\'2\',\         


        

Answer 1

As other people have answered, tuples in python are immutable and the only way to 'modify' one is to create a new one with the appended elements included.

But the best solution is a list. When whatever function or method that requires a tuple needs to be called, create a tuple by using tuple(list).

Answer 2

    list_of_tuples = [('1', '2', '3', '4'),
                      ('2', '3', '4', '5'),
                      ('3', '4', '5', '6'),
                      ('4', '5', '6', '7')]


    def mod_tuples(list_of_tuples):
        for i in range(0, len(list_of_tuples)):
            addition = ''
            for x in list_of_tuples[i]:
                addition = addition + x
            list_of_tuples[i] = list_of_tuples[i] + (addition,)
        return list_of_tuples

    # check: 
    print mod_tuples(list_of_tuples)