Question

how can I convert a tuple into a key value pairs dynamically?

Let’s say I have:

tuple = ('name1','value1','name2','value2','name3','value3')

I want to put it into a dictionary:

dictionary = { name1 : value1, name2 : value2, name3 : value3 )

Answer 1

Convert the tuple to key-value pairs and let the dict constructor build a dictionary:

it = iter(tuple_)
dictionary = dict(zip(it, it))

The zip(it, it) idiom produces pairs of items from an otherwise flat iterable, providing a sequence of pairs that can be passed to the dict constructor. A generalization of this is available as the grouper recipe in the itertools documentation.

If the input is sufficiently large, replace zip with itertools.izip to avoid allocating a temporary list. Unlike expressions based on mapping t[i] to [i + 1], the above will work on any iterable, not only on sequences.