Function call_command

django/core/management/__init__.py:83–195

Call the given command, with the given options and args/kwargs. This is the primary API you should use for calling specific commands. `command_name` may be a string or a command object. Using a string is preferred unless the command object is required for further processing or

(command_name, *args, **options)

def call_command(command_name, *args, **options):
    """
    Call the given command, with the given options and args/kwargs.

    This is the primary API you should use for calling specific commands.

    `command_name` may be a string or a command object. Using a string is
    preferred unless the command object is required for further processing or
    testing.

    Some examples:
        call_command('migrate')
        call_command('shell', plain=True)
        call_command('sqlmigrate', 'myapp')

        from django.core.management.commands import flush
        cmd = flush.Command()
        call_command(cmd, verbosity=0, interactive=False)
        # Do something with cmd ...
    """
    if isinstance(command_name, BaseCommand):
        # Command object passed in.
        command = command_name
        command_name = command.__class__.__module__.split(".")[-1]
    else:
        # Load the command object by name.
        try:
            app_name = get_commands()[command_name]
        except KeyError:
            raise CommandError("Unknown command: %r" % command_name)

        if isinstance(app_name, BaseCommand):
            # If the command is already loaded, use it directly.
            command = app_name
        else:
            command = load_command_class(app_name, command_name)

    # Simulate argument parsing to get the option defaults (see #10080 for
    # details).
    parser = command.create_parser("", command_name)
    # Use the `dest` option name from the parser option
    opt_mapping = {
        min(s_opt.option_strings).lstrip("-").replace("-", "_"): s_opt.dest
        for s_opt in parser._actions
        if s_opt.option_strings
    }
    arg_options = {opt_mapping.get(key, key): value for key, value in options.items()}
    parse_args = []
    for arg in args:
        if isinstance(arg, (list, tuple)):
            parse_args += map(str, arg)
        else:
            parse_args.append(str(arg))

    def get_actions(parser):
        # Parser actions and actions from sub-parser choices.
        for opt in parser._actions:
            if isinstance(opt, _SubParsersAction):