```

Languages are stored in `config.toml` while versions are discovered

fromthe devguide.

frompeps.python.org (generated by `python-releases.toml`).

-q selects "quick build", which means to build only HTML.

logging.info("Full build start.")

start_time = perf_counter()

http = urllib3.PoolManager()

versions =parse_versions_from_devguide(http)

versions =parse_versions_from_peps_site(http)

languages = parse_languages_from_config()

# Reverse languages but not versions, because we take version-language

# pairs from the end of the list, effectively reversing it.

return EX_FAILURE if any_build_failed else EX_OK

defparse_versions_from_devguide(http: urllib3.PoolManager) -> Versions:

defparse_versions_from_peps_site(http: urllib3.PoolManager) -> Versions:

releases = http.request(

"GET",

"https://peps.python.org/api/release-cycle.json",