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我從一些事件網站上獲取信息當我運行我的蜘蛛時我得到了這個錯誤，我想知道是否有人知道如何解決它。Scrapy信息不是JSON可序列化
File "/usr/lib/python3.4/json/encoder.py", line 173, in default raise TypeError(repr(o) + " is not JSON serializable")
TypeError: <Selector xpath='.//a[@target="_top"]/text()' data='Artist Development Fellowship Informatio'> is not JSON serializable
我可以湊與文本：
scrapy shell http://ofa.fas.harvard.edu/events
for event in response.xpath('.//article[@class="node node-event node-teaser article event-start clearfix"]'):
event.xpath('.//a[@target="_top"]/text()')
蜘蛛：
import scrapy
class FAS(scrapy.Spider):
name ='fas'
start_urls = [
'http://ofa.fas.harvard.edu/events',
]
def parse(self, response):
for event in response.xpath('.//article[@class="node node-event node-teaser article event-start clearfix"]'):
yield {
'title' : event.xpath('.//a[@target="_top"]/text()'),
}