Get settings from dovecot documentation

dovemanual.py

from lxml import etree
import urllib.request
import urllib.parse
import sys
from html2text import html2text

def get_named_setting(name, url="https://doc.dovecot.org/settings/dovecot_core_settings/"):
    f = urllib.request.urlopen(url)
    parser = etree.HTMLParser()
    tree = etree.parse(f, parser)
    name = name.replace("_","-")
    res = tree.xpath("//div[@id='%s']" % name)
    return html2text(etree.tostring(res[0]).decode("utf-8"))

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: %s setting" % sys.argv[0])
        sys.exit(1)
    print(get_named_setting(sys.argv[1]))

example.txt

~$ python3 dovemanual.py auth_cache_verify_password_with_worker
## `auth_cache_verify_password_with_worker`¶

New in version v2.2.34.

  * Default: `no`
  * Values: [Boolean](../../configuration_manual/config_file/boolean/#boolean)

The auth master process by default is responsible for the hash verifications.
Setting this to yes moves the verification to auth-worker processes. This
allows distributing the hash calculations to multiple CPU cores, which could
make sense if strong hashes are used.