chore(ruff): use names not magic numbers. This one names the 32 chars as being equivalent to 256 bytes Also adds the missing http_.client.TOO_MANY_REQUESTS under python 2 to http_. It allows me to use a symbolic name and not have to touch client.py code when I remove python2 support from http_. Also the prior checkin had a bogus commit message. Sigh, time to step away from the computer today 8-). It replaced a magic number with MAX_MIME_EXTENSION_LENGTH which was set to a better magic number derived by parsing extensions in /etc/mime.types.

try:
    from html import escape as html_escape_  # python 3

    def html_escape(string, quote=False):
        # html_escape under python 3 sets quote to true by default
        # make it python 2 compatible
        return html_escape_(string, quote=quote)
except ImportError:
    # python 2 fallback
    from cgi import escape as html_escape  # noqa: F401