The main advantages of using tuples, rather than lists, are as follows:
They are better suited for use with different (heterogeneous) data types.
Tuples can be used as a key for a dictionary (we'll see dictionaries in the next chapter). This is due to the immutable nature of tuples.
Iterating over tuples is much faster than iterating over lists.
They are better for passing around data that you don't want changed.
A tuple consists of a number of individual values, separated by commas (just like lists). As with lists, a tuple can contain elements of different types. You create a tuple by placing all of the comma-separated values in parentheses, (), like this:
Python 3.6.1 (default, Dec 2015, 13:05:11) [GCC 4.8.2] on linux pets = ('dog', 'cat', 'parrot') pets => ('dog', 'cat', 'parrot') type(pets) => <class 'tuple'>
The parentheses are optional, and you might as well create a tuple using just the comma-separated values, as follows:
Python 3.6.1 (default, Dec 2015,...