def freeze(h, output_yaml, resolve, groups):
    """Output installed packages."""
    if not groups:
        groups = filter(lambda group: not group.lower().startswith("bower"),
                        h.requirements.keys())
    else:
        groups = [text_type.strip(group) for group in groups.split(",")]

    if output_yaml:
        for requirements in h.requirements.values():
            for requirement in requirements:
                if resolve and not requirement.version:
                    requirement.load_installed_version()
        click.echo(h.requirements.yaml)
    else:
        for group in groups:
            if not h.requirements[group]:
                continue
            click.echo("# {}".format(group))
            for requirement in h.requirements[group]:
                if resolve and not requirement.version:
                    requirement.load_installed_version()
                click.echo(str(requirement))
def reset(cls):
        cls.info = [
            [
                "Keyboard Control:",
                "  auto repeat:  on    key click percent:  0    LED mask:  00000002",
                "  XKB indicators:",
                "    00: Caps Lock:   off    01: Num Lock:    on     02: Scroll Lock: off",
                "    03: Compose:     off    04: Kana:        off    05: Sleep:       off",
            ],
            [
                "Keyboard Control:",
                "  auto repeat:  on    key click percent:  0    LED mask:  00000002",
                "  XKB indicators:",
                "    00: Caps Lock:   on     01: Num Lock:    on     02: Scroll Lock: off",
                "    03: Compose:     off    04: Kana:        off    05: Sleep:       off",
            ],
        ]
        cls.index = 0
        cls.is_error = False