Python Tuples
Tuple
A tuple is a collection which is ordered and unchangeable. In Python tuples are written with round brackets.
Example
Return the item in position 1:
thistuple = ("apple", "banana", "cherry")
print(thistuple[1])
Run example »
Example
You cannot change values in a tuple:
thistuple = ("apple", "banana", "cherry")
thistuple[1] = "blackcurrant" # test changeability
print(thistuple)
Run example »
The tuple() Constructor
It is also possible to use the tuple() constructor to make a tuple. The len() function returns the length of the tuple.
Example
Using the tuple() method to make a tuple:
thistuple = tuple(("apple", "banana", "cherry")) # note the double round-brackets
print(thistuple)
Run example »
Example
The len() method returns the number of items in a tuple:
thistuple = tuple(("apple", "banana", "cherry"))
print(len(thistuple))
Run example »
Note: You cannot remove items in a tuple.
