Adding config sources

To add config sources to a ConfigParser, use ConfigParser.add_source() method:

ConfigParser.add_source(source, *args, **kwargs)

Add a new config source to the ConfigParser.

The only argument required for all sources is the source parameter which may be the name of a source or a class that implements a source. Other arguments are passed on to the class that implements the source.

The built-in sources are:

• argparse: for getting config values from the command line using an argparse.ArgumentParser.
• simple_argparse: a simpler version of the argparse source that is easier to use but doesn’t allow you to add any arguments that aren’t also config items.
• environment: for getting config values from environment variables.
• json: for getting config values from JSON files.
• dict: for getting config values from Python dictionaries.

See Sources for more information about the built-in sources and creating your own sources.

Return the created config source object.