I  found a naming convention for the variable saying 'dirSrv' but it was a developer page. On more official pages I did not find that (like http://www.python.org/dev/peps/pep-0008/#naming-conventions)

so yes, 'dirsrv' seems more readable that 'dirSrv' I change that in that patch

https://fedorahosted.org/389/attachment/ticket/47568/0002-Ticket-47568-Rename-DSAdmin-class.patch