What is Python Set Union() Method? Tips And Advanced Examples

Title: What is Python Set Union() Method? Tips And Advanced Examples

URL Source: https://medium.com/@pies052022/what-is-python-set-union-method-tips-and-advanced-examples-f18bd2f718bd?source=rss------python-5

Published Time: 2026-04-18T04:01:01Z

Markdown Content:
# What is Python Set Union() Method? Tips And Advanced Examples | by JOKEN VILLANUEVA | Apr, 2026 | Medium

[Sitemap](https://medium.com/sitemap/sitemap.xml)

[Open in app](https://play.google.com/store/apps/details?id=com.medium.reader&referrer=utm_source%3DmobileNavBar&source=post_page---top_nav_layout_nav-----------------------------------------)

Sign up

[Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fmedium.com%2F%40pies052022%2Fwhat-is-python-set-union-method-tips-and-advanced-examples-f18bd2f718bd&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)

[](https://medium.com/?source=post_page---top_nav_layout_nav-----------------------------------------)

Get app

[Write](https://medium.com/m/signin?operation=register&redirect=https%3A%2F%2Fmedium.com%2Fnew-story&source=---top_nav_layout_nav-----------------------new_post_topnav------------------)

[Search](https://medium.com/search?source=post_page---top_nav_layout_nav-----------------------------------------)

Sign up

[Sign in](https://medium.com/m/signin?operation=login&redirect=https%3A%2F%2Fmedium.com%2F%40pies052022%2Fwhat-is-python-set-union-method-tips-and-advanced-examples-f18bd2f718bd&source=post_page---top_nav_layout_nav-----------------------global_nav------------------)


# What is Python Set Union() Method? Tips And Advanced Examples

[](https://medium.com/@pies052022?source=post_page---byline--f18bd2f718bd---------------------------------------)

[JOKEN VILLANUEVA](https://medium.com/@pies052022?source=post_page---byline--f18bd2f718bd---------------------------------------)

Follow

2 min read

·

2 hours ago

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Fvote%2Fp%2Ff18bd2f718bd&operation=register&redirect=https%3A%2F%2Fmedium.com%2F%40pies052022%2Fwhat-is-python-set-union-method-tips-and-advanced-examples-f18bd2f718bd&user=JOKEN+VILLANUEVA&userId=5b98163f575c&source=---header_actions--f18bd2f718bd---------------------clap_footer------------------)

[](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2F_%2Fbookmark%2Fp%2Ff18bd2f718bd&operation=register&redirect=https%3A%2F%2Fmedium.com%2F%40pies052022%2Fwhat-is-python-set-union-method-tips-and-advanced-examples-f18bd2f718bd&source=---header_actions--f18bd2f718bd---------------------bookmark_footer------------------)

[Listen](https://medium.com/m/signin?actionUrl=https%3A%2F%2Fmedium.com%2Fplans%3Fdimension%3Dpost_audio_button%26postId%3Df18bd2f718bd&operation=register&redirect=https%3A%2F%2Fmedium.com%2F%40pies052022%2Fwhat-is-python-set-union-method-tips-and-advanced-examples-f18bd2f718bd&source=---header_actions--f18bd2f718bd---------------------post_audio_button------------------)

Share

## What is the Python Set union()?

The**Set Union()** method in Python allows elements to create a new set of elements from all the sets which give values from both sets.

The **union()** method, also known as the set union operator (|), is designed to join two or more sets together.

Press enter or click to view image in full size


## Syntax:

set1.union(set2, set3, set4….)
## Parameters:

Zero or More Sets
## Return value from a set union():

* The **union method** sets new elements from the set and all other sets (passed as an argument).
* The **union () method** returns a shallow copy of the set if the argument is not passed to it. **Shallow** means lacking in depth or solidi