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Python Set intersection() Method

❮ Set Methods


Example

Return a set that contains the items that exist in both set x, and set y:

x = {"apple", "banana", "cherry"}
y = {"google", "microsoft", "apple"}

z = x.intersection(y)

print(z)
Try it Yourself »

Definition and Usage

The intersection() method returns a set that contains the similarity between two or more sets.

Meaning: The returned set contains only items that exist in both sets, or in all sets if the comparison is done with more than two sets.

As a shortcut, you can use the & operator instead, see example below.


Syntax

set.intersection(set1, set2 ... etc.)

Parameter Values

Parameter Description
set1 Required. The set to search for equal items in
set2 Optional. The other set to search for equal items in.
You can compare as many sets you like.
Separate the sets with a comma

Shorter Syntax

set & set1 & set2 ... etc.

Parameter Values

Parameter Description
set1 Required. The set to search for equal items in
set2 Optional. The other set to search for equal items in.
You can compare as many sets you like.
Separate the sets with & (a and operator).
See examples below.

More Examples

Example

Use & as a shortcut instead of intersection():

x = {"apple", "banana", "cherry"}
y = {"google", "microsoft", "apple"}

z = x & y

print(z)
Try it Yourself »

Example

Join 3 sets, and return a set with items that is present in all 3 sets:

x = {"a", "b", "c"}
y = {"c", "d", "e"}
z = {"f", "g", "c"}

result = x.intersection(y, z)

print(result)
Try it Yourself »

Example

Join 3 sets with the & operator:

x = {"a", "b", "c"}
y = {"c", "d", "e"}
z = {"f", "g", "c"}

result = x & y & z

print(result)
Try it Yourself »

❮ Set Methods

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