看起来http://portland.beerandblog.com/feed/atom/搞砸了(0.92和2.0 RSS源也是如此)。
Universal Feed Parser(来自http://code.google.com/p/feedparser/source/browse/trunk/feedparser/feedparser.py?spec=svn295&r=295的最新版本)看不到任何日期。
<title>Beer and Blog Portland</title>
<atom:link href="http://portland.beerandblog.com/feed/" rel="self" type="application/rss+xml" />
<link>http://portland.beerandblog.com</link>
<description>Bloggers helping bloggers over beers in Portland, Oregon</description>
<pubDate>Fri, 19 Jun 2009 22:54:57 +0000</pubDate>
<generator>http://wordpress.org/?v=2.7.1</generator>
<language>en</language>
<sy:updatePeriod>hourly</sy:updatePeriod>
<sy:updateFrequency>1</sy:updateFrequency>
<item>
<title>Widmer is sponsoring our beer for the After Party!!</title>
<link>http://portland.beerandblog.com/2009/06/19/widmer-is-sponsoring-our-beer-for-the-after-party/</link>
<comments>http://portland.beerandblog.com/2009/06/19/widmer-is-sponsoring-our-beer-for-the-after-party/#comments</comments>
<pubDate>Fri, 19 Jun 2009 22:30:35 +0000</pubDate>
<dc:creator>Justin Kistner</dc:creator>
<category><![CDATA[beer]]></category>
我正在尝试
try: published = e.published_parsed except: try: published = e.updated_parsed except: published = e.created_parsed
它失败了,因为我无法约会。
有关如何以合理的方式提取日期的任何想法?
谢谢!
答案 0 :(得分:3)
适合我:
>>> e = feedparser.parse('http://portland.beerandblog.com/feed/atom/')
>>> e.feed.date
u'2009-06-19T22:54:57Z'
>>> e.feed.date_parsed
(2009, 6, 19, 22, 54, 57, 4, 170, 0)
>>> e.feed.updated_parsed
(2009, 6, 19, 22, 54, 57, 4, 170, 0)
也许您正在寻找e.updated_parsed
,而应该寻找e.feed.updated_parsed
?
答案 1 :(得分:1)
使用裸except
可能会掩盖代码中的问题。假设(我不使用feed解析器)AttributeError是你应该检查的特定异常,试试(偶然双关语):
try:
published = e.published_parsed
except AttributeError:
try:
published = e.updated_parsed
except AttributeError:
published = e.created_parsed
在任何情况下,请显示错误消息和追溯,而不是“它失败”。
修改强> 我已下载最新版本(即不是来自svn)并按照此结果跟随文档中的示例:
C:\feedparser>\python26\python
Python 2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import feedparser
>>> d = feedparser.parse('http://portland.beerandblog.com/feed/atom/')
>>> d.entries[0].updated
u'2009-06-19T22:54:57Z'
>>> d.entries[0].updated_parsed
time.struct_time(tm_year=2009, tm_mon=6, tm_mday=19, tm_hour=22, tm_min=54, tm_sec=57, tm_wday=4, tm_yday=170, tm_isdst=0)
>>> d.entries[0].title
u'Widmer is sponsoring our beer for the After Party!!'
>>> d.entries[0].published
u'2009-06-19T22:30:35Z'
>>> d.entries[0].published_parsed
time.struct_time(tm_year=2009, tm_mon=6, tm_mday=19, tm_hour=22, tm_min=30, tm_sec=35, tm_wday=4, tm_yday=170, tm_isdst=0)
>>>
就像我说的那样,我不会使用RSS和Atoms等,但对我来说这似乎很简单。除了我不明白你从哪里获得<pubDate>
标签和arpanet风格的时间戳;原始来源中不存在的AFAICT - 它具有<published>
和ISO时间戳:
>>> import urllib
>>> guff = urllib.urlopen('http://portland.beerandblog.com/feed/atom/').read()
>>> guff.find('pubDate')
-1
>>> guff.find('published')
1171
>>> guff[1160:1200]
'pdated>\n\t\t<published>2009-06-19T22:30:35'
>>>
“e.published_parsed”中你的“e”是什么?考虑显示访问feedparser的完整故事,就像我上面所做的那样。