Preserve case in ConfigParser?

The documentation is confusing. What they mean is this:

import ConfigParser, os
def get_config():
    config = ConfigParser.ConfigParser()
    config.optionxform=str
    try:
        config.read(os.path.expanduser('~/.myrc'))
        return config
    except Exception, e:
        log.error(e)

c = get_config()  
print c.options('rules')

I.e. override optionxform, instead of calling it; overriding can be done in a subclass or in the instance. When overriding, set it to a function (rather than the result of calling a function).

I have now reported this as a bug, and it has since been fixed.