Beware of pages without description, maybe generate one from the lead

[JulienPalard]

Typically this page https://docs.python.org/3/library/functions.html has no tag, it should.

[hugovk]

Do you mean the <description> HTML tag?

If so, since python/cpython#99931 in December 1999, we now generate it with sphinxext-opengraph:

<meta name="description" content="The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order.,,,, Built-in Functions,,, A, abs(), aiter(), all(), a..." />

And:

<meta property="og:description" content="The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order.,,,, Built-in Functions,,, A, abs(), aiter(), all(), a..." />