我有一个脚本,我想读取 RSS 提要中的条目并将单个条目以 JSON 格式存储到 CouchDB 数据库中。
我的代码中有趣的部分如下所示:
Feed = namedtuple('Feed', ['name', 'url'])
couch = couchdb.Server(COUCH_HOST)
couch.resource.credentials = (COUCH_USER, COUCH_PASS)
db = couch['raw_entries']
for feed in map(Feed._make, csv.reader(open("feeds.csv", "rb"))):
d = feedparser.parse(feed.url)
for item in d.entries:
db.save(item)
当我尝试运行该代码时,我收到以下错误db.save(item)
:
AttributeError: object has no attribute 'read'
好的,所以我然后做了一些调试......
for feed in map(Feed._make, csv.reader(open("feeds.csv", "rb"))):
d = feedparser.parse(feed.url)
for item in d.entries:
print(type(item))
结果<class 'feedparser.FeedParserDict'>
- 啊,所以 feedparser 正在使用它自己的 dict 类型......好吧,如果我尝试将它显式转换为 adict
呢?
for feed in map(Feed._make, csv.reader(open("feeds.csv", "rb"))):
d = feedparser.parse(feed.url)
for item in d.entries:
db.save(dict(item))
Traceback (most recent call last):
File "./feedchomper.py", line 32, in <module>
db.save(dict(item))
File "/home/dealpref/lib/python2.7/couchdb/client.py", line 407, in save
_, _, data = func(body=doc, **options)
File "/home/dealpref/lib/python2.7/couchdb/http.py", line 399, in post_json
status, headers, data = self.post(*a, **k)
File "/home/dealpref/lib/python2.7/couchdb/http.py", line 381, in post
**params)
File "/home/dealpref/lib/python2.7/couchdb/http.py", line 419, in _request
credentials=self.credentials)
File "/home/dealpref/lib/python2.7/couchdb/http.py", line 239, in request
resp = _try_request_with_retries(iter(self.retry_delays))
File "/home/dealpref/lib/python2.7/couchdb/http.py", line 196, in _try_request_with_retries
return _try_request()
File "/home/dealpref/lib/python2.7/couchdb/http.py", line 222, in _try_request
chunk = body.read(CHUNK_SIZE)
AttributeError: 'dict' object has no attribute 'read'
w-什么?这没有意义,因为以下工作正常并且类型仍然是dict
:
some_dict = dict({'foo': 'bar'})
print(type(some_dict))
db.save(some_dict)
我在这里想念什么?