如何组织我的代码,以便重复尝试除了子句只存在一次？

你可以写一个装饰者:

from functools import wraps

def http_safe(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        try:
            return func(*args, **kwargs)
        except HTTPServiceError, e:
            click.echo('{[code]}: {[message]}'.format(e.details['errors'][0]))
   return wrapper

然后使用它:

@http_safe
def cloudflare_add_zone(ctx, url, jumpstart, organization):
    if organization:
        ctx.create_zone(url, jumpstart, organization)
    else:
        ctx.create_zone(url, jumpstart)
    click.echo('Zone successfully created: %s' % url)