DictAction

class mmengine.config.DictAction(option_strings, dest, nargs=None, const=None, default=None, type=None, choices=None, required=False, help=None, metavar=None)

argparse action to split an argument into KEY=VALUE form on the first = and append to a dictionary. List options can be passed as comma separated values, i.e ‘KEY=V1,V2,V3’, or with explicit brackets, i.e. ‘KEY=[V1,V2,V3]’. It also support nested brackets to build list/tuple values. e.g. ‘KEY=[(V1,V2),(V3,V4)]’