python-ldap version: 3.3.0

SlapdObject creates a server configured by a configuration file, and this method is deprecated in favor of a configuration directory. Also it seems this prevents some actions to be doable with slapadd, that I would like to implement (see #373).

What would you think of making SlapdObject spawn a directory configured slapd server? This could be optional or by default.

I volunteer to provide a patch.