How to use the colorlog.escape_codes.parse_colors function in colorlog

global_config (~nox.main.GlobalConfig): The global configuration.

    Returns:
        Union[~.Manifest,int]: ``0`` if a listing is all that is requested,
            the manifest otherwise (to be sent to the next task).
    """
    if not global_config.list_sessions:
        return manifest

    # If the user just asked for a list of sessions, print that
    # and be done.

    print("Sessions defined in {noxfile}:\n".format(noxfile=global_config.noxfile))

    reset = parse_colors("reset") if global_config.color else ""
    selected_color = parse_colors("cyan") if global_config.color else ""
    skipped_color = parse_colors("white") if global_config.color else ""

    for session, selected in manifest.list_all_sessions():
        output = "{marker} {color}{session}{reset}"

        if selected:
            marker = "*"
            color = selected_color
        else:
            marker = "-"
            color = skipped_color

        if session.description is not None:
            output += " -> {description}"

        print(

def color(self, log_colors, level_name):
        """Return escape codes from a ``log_colors`` dict."""
        return parse_colors(log_colors.get(level_name, ""))

def color(self, log_colors, level_name):
        """Return escape codes from a ``log_colors`` dict."""
        return parse_colors(log_colors.get(level_name, ""))

Returns:
        Union[~.Manifest,int]: ``0`` if a listing is all that is requested,
            the manifest otherwise (to be sent to the next task).
    """
    if not global_config.list_sessions:
        return manifest

    # If the user just asked for a list of sessions, print that
    # and be done.

    print("Sessions defined in {noxfile}:\n".format(noxfile=global_config.noxfile))

    reset = parse_colors("reset") if global_config.color else ""
    selected_color = parse_colors("cyan") if global_config.color else ""
    skipped_color = parse_colors("white") if global_config.color else ""

    for session, selected in manifest.list_all_sessions():
        output = "{marker} {color}{session}{reset}"

        if selected:
            marker = "*"
            color = selected_color
        else:
            marker = "-"
            color = skipped_color

        if session.description is not None:
            output += " -> {description}"

        print(
            output.format(

manifest (~.Manifest): The manifest of sessions to be run.
        global_config (~nox.main.GlobalConfig): The global configuration.

    Returns:
        Union[~.Manifest,int]: ``0`` if a listing is all that is requested,
            the manifest otherwise (to be sent to the next task).
    """
    if not global_config.list_sessions:
        return manifest

    # If the user just asked for a list of sessions, print that
    # and be done.

    print("Sessions defined in {noxfile}:\n".format(noxfile=global_config.noxfile))

    reset = parse_colors("reset") if global_config.color else ""
    selected_color = parse_colors("cyan") if global_config.color else ""
    skipped_color = parse_colors("white") if global_config.color else ""

    for session, selected in manifest.list_all_sessions():
        output = "{marker} {color}{session}{reset}"

        if selected:
            marker = "*"
            color = selected_color
        else:
            marker = "-"
            color = skipped_color

        if session.description is not None:
            output += " -> {description}"

def color(the_color, *args, reset=None):
    """Color helper."""
    from colorlog.escape_codes import escape_codes, parse_colors

    try:
        if not args:
            assert reset is None, "You cannot reset if nothing being printed"
            return parse_colors(the_color)
        return parse_colors(the_color) + " ".join(args) + escape_codes[reset or "reset"]
    except KeyError as k:
        raise ValueError("Invalid color {} in {}".format(str(k), the_color))