Mastering Python Scripting for System Administrators

Indexing, slicing, and matrices

Tuple indices work the same way as list indices. Values can be accessed using index. If you try to read or write an element that does not exist, you get IndexError. If an index has a negative value, it counts backward from the end of the list.

Now, we will create a tuple named cities and perform some index operations:

cities = ('Mumbai', 'Bangalore', 'Chennai', 'Pune')

Description	Expression	Results
Index starts at zero	cities[2]	'Chennai'
Slicing: getting sections	cities[1:]	('Bangalore', 'Chennai', 'Pune')
Negative: count from the right	cities[-3]	'Bangalore'