The default ConfigParser in Python is flexible and sophisticated, but surprisingly it behaves annoyingly when working with simple configutation files. It requires that every option must belong to certain sections (link). If there is no section, it aborts with an error. Additionally, it automatically converts keys to lower case, therefore it is case-insensitive regarding keys (link).
To deal with these annoyances, I implemented an alternative ConfigParser (https://github.com/songqiang/configparser). It aims to work simple configuration files, that contains a key and its value in each line. The delimiter between a ket and its value can be equal (=), colon (:), whitespaces and tabs. Section names are optional. It implements the same set of interfaces of the default ConfigParser excluding the functionality for writing and sophisticated customization. To use my ConfigParser, just download the ConfigParser.py file and put it in the same directory with the calling python script. Since Python first looks up the current working directory when importing a module, my ConfigParser will override the default one.