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Python Set union() Method

❮ Set Methods


Example

Return a set that contains all items from both sets, duplicates are excluded:

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

z = x.union(y)

print(z)
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Definition and Usage

The union() method returns a set that contains all items from the original set, and all items from the specified sets.

You can specify as many sets you want, separated by commas.

If an item is present in more than one set, the result will contain only one appearance of this item.


Syntax

set.union(set1, set2...)

Parameter Values

Parameter Description
set1 Required. The set to unify with
set2 Optional. The other set to unify with.
You can compare as many sets as you like.
Separate each set with a comma

More Examples

Example

Unify more than 2 sets:

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

result = x.union(y, z)

print(result)
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❮ Set Methods