Curiously, searching the docs for "walrus" (https://docs.python.org/3/search.html?q=walrus https://docs.python.org/3/search.html?q=walrus) yields exactly the re

Curiously, searching the docs for "walrus" (https://docs.python.org/3/search.html?q=walrus https://docs.python.org/3/search.html?q=walrus) yields exactly the results you need, but searching for "assignment expression" yields the previous results mixed a lot of other results due to the word "expression".