Pandas for Everyone: Python Data Analysis, First Edition

J. Tuples

A tuple is similar to a list, in that both can hold heterogeneous bits of information. The main difference is that the contents of a tuple are “immutable,” meaning they cannot be changed. They are also created with a pair of round brackets, ( ).

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my_tuple =('a', 1, True, 3.14)

Subsetting items is accomplished in exactly the same ways as for a list (i.e., you use square brackets).

# get the first item print(my_tuple[0])

a

However, if we try to change the contents of an index, we will get an error.

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# this will cause an error my_tuple[0] = 'zzzzz'

Traceback (most recent call last):   File "<ipython-input-1-3689669e7d2b>", line 2, in <module>     my_tuple[0] = 'zzzzz' TypeError: ...