I recently opened this bug report  stating that ConfigParser not handling configuration files without sections (or those that have options above first section definition) is an issue.
ConfigParser* should be able to parse "POSIX" config files (key=value, no sections).
I'd like to lobby even for it being the default behavior without requiring a strict=False argument. If interested, please have a look at the bug report for some further arguments.
* It's called ConfigParser, not IniParser.