handlers.py 文件源码

def _error_with_duplicate_in_set(self, elements):
        import click
        import collections

        counter = collections.Counter(elements)
        dups = {name for name, count in counter.items() if count > 1}

        ctx = click.get_current_context()
        click.echo(ctx.get_usage() + '\n', err=True)
        click.secho("Error: Option --%s was given these values: %r more than "
                    "one time, values passed should be unique."
                    % (self.cli_name, dups), err=True, fg='red', bold=True)
        ctx.exit(1)