How to get the length of a set in Python
Overview
A set in Python is used to store multiple unordered and unchangeable items in a single variable.
A set is written with braces ({}).
For example:
myset = {"USA", "CANADA", "BRAZIL"}
In the code above, the variable myset represents the set, while "USA", "CANADA", and "BRAZIL" are the elements of the set.
How to determine the length of a set
To determine the length of a set in Python, we use the len() function.
Syntax
len(set)
Parameters
The len() function takes a single mandatory parameter, which is the set data type.
Return value
The len() function returns the length of the set passed to it.
Example
# creating a setmyset = {"USA", "CANADA", "BRAZIL"}# implementing the len() functionprint(len(myset))
Explanation
- Line 2: We create the set
myset. - Line 5: We use the
len()function to get the length of the set and print it.
Note: The output of the code above,
3, means that the set contains three elements. It represents the length of the given set.