ext.py 文件源码

def _format_description(ctx):
    """Format the description for a given `click.Command`.

    We parse this as reStructuredText, allowing users to embed rich
    information in their help messages if they so choose.
    """
    if not ctx.command.help:
        return

    for line in statemachine.string2lines(
            ctx.command.help, tab_width=4, convert_whitespace=True):
        yield line
    yield ''