Python 自动抓取日期为未来9天的动态URL

每周五，我都想用crontab从opetable.com网站上搜刮1000磅。以后预订两个星期天的房间。页面的URL是提交的结果

html = urlopen('http://www.opentable.com/s/PopRestaurantList?covers=2&currentview=list&datetime=2016-03-06+19%3A00&metroid=15&onlypoptimes=true&personalizer=true&ref=2213&showmap=false&size=100&sort=Popularity')  

使用urlparse或其他模块；datetime如何更改URL，使其始终具有刮板运行后9天的日期

bsObj = BeautifulSoup(html.read().decode('utf-8'),"lxml")  
table = bsObj.findAll("div", {"class":"content-section-list infinite-results-list"})  
headlines = table[0].findAll("a", {"class":"rest-row-name rest-name"})  
for headline in headlines:  
    restaurant = (headline.get_text().encode('utf-8'))  
    print(restaurant)  
    print '\n'  

我已将日期时间增量设置为9天

date = datetime.datetime.today()
date += datetime.timedelta(days=9)  
print(date)  

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您可以使用字符串格式和date.strftime来执行此操作：

date = datetime.datetime.today()
date += datetime.timedelta(days=9)  
url = 'http://www.opentable.com/s/PopRestaurantList?covers=2&currentview=list&datetime={date}+19%3A00&metroid=15&onlypoptimes=true&personalizer=true&ref=2213&showmap=false&size=100&sort=Popularity'
html = urlopen(url.format(date=date.strftime('%Y-%m-%d')))

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当我尝试在打印后出现语法错误时（date.strftime（“%Y-%m-%d”）^SyntaxError:invalid syntaxi如果在urlopen之后有print语句，则我的示例代码中最后一行的末尾缺少一个paren，这可能是导致错误的原因