argclz.commands.sub_command_group

argclz.commands.sub_command_group(**kwargs)

Create a sub-commands group.

>>> class Example(AbstractParser):
...     command_group = sub_command_group()
...     @command_group('a')
...     class SubCommand(AbstractParser):
...         ...

The type of sub_command_group() as an instance-attribute is Type[AbstractParser]|None, and its value is handled by set_options() when paring the command-line arguments.

Sub command class

When parsing successful (especially when parse_only=False case), sub-command class (e.g. SubCommand in above example) will be initialized. The __init__ could have two different signature, there are

def __init__(self): ... # no-arg init
def __init__(self, parent: AbstractParser): ... # one-arg init

where the parameter parent refer to its outer AbstractParser (e.g. Example in above example).