For those annoyed by the ad on this morioh.com blog post, the official Python website offers a succinct description of the same feature: [1] Dictionary Merge &

For those annoyed by the ad on this morioh.com blog post, the official Python website offers a succinct description of the same feature: [1] Dictionary Merge & Update Operators Merge (|) and update (|=) operators have been added to the built-in dict class. See PEP 584 [2] for a full description. (Contributed by Brandt Bucher in bpo-36144 [3].) [1]: https://docs.python.org/3.9/whatsnew/3.9.html https://docs.python.org/3.9/whatsnew/3.9.html "What’s New In Python 3.9" [2]: https://www.python.org/dev/peps/pep-0584 https://www.python.org/dev/peps/pep-0584 "PEP 584" [3]: https://bugs.python.org/issue36144 https://bugs.python.org/issue36144 "bpo-36144"