錯誤與流框架

Question

我試圖建立一個基本的飼料：

from stream_framework.feeds.redis import RedisFeed 

class PinFeed(RedisFeed): 
    key_format = 'feed:normal:%(user_id)s' 

class UserPinFeed(PinFeed): 
    key_format = 'feed:user:%(user_id)s' 


feed = UserPinFeed(13) 

但是，當我加入一個活動後運行feed[:2]，我不斷收到此錯誤：

<ipython-input-25-41b7cd0d0d8c> in <module>() 
----> 1 feed[:2] 

/Users/home/venv/lib/python2.7/site-packages/stream_framework/feeds/base.pyc in __getitem__(self, k) 
    303   try: 
    304    results = self.get_activity_slice(
--> 305     start, bound) 
    306   except StopIteration: 
    307    # There's nothing left, even though the bound is higher. 

/Users/home/venv/lib/python2.7/site-packages/stream_framework/feeds/base.pyc in get_activity_slice(self, start, stop, rehydrate) 
    354   print 'line 350' 
    355   if self.needs_hydration(activities) and rehydrate: 
--> 356    activities = self.hydrate_activities(activities) 
    357   return activities 
    358 

/Users/home/venv/lib/python2.7/site-packages/stream_framework/feeds/base.pyc in hydrate_activities(self, activities) 
    332   activity_data = {a.serialization_id: a for a in activity_list} 
    333   print activity_data 
--> 334   return [activity.get_hydrated(activity_data) for activity in activities] 
    335 
    336  def needs_hydration(self, activities): 

/Users/home/venv/lib/python2.7/site-packages/stream_framework/activity.pyc in get_hydrated(self, activities) 
    42 
    43   ''' 
---> 44   activity = activities[int(self.serialization_id)] 
    45   activity.dehydrated = False 
    46   return activity 

KeyError: 14929294667170000000001005L 

我能夠打印出[<stream_framework.activity.DehydratedActivity object at 0x10e114e90>]和[u'14929294667170000000001005']。

任何線索可能導致這種情況？

Answer 1

有一個在KeyError堆棧跟蹤示出的類型不匹配這裏，關鍵是和之間的[u'14929294667170000000001005']

u'14929294667170000000001005'打印輸出形式是Unicode字符串 而14929294667170000000001005L是long類型整數。

密鑰本身或您試圖用作查找密鑰的值將不得不更改，以便類型相同。請注意，帶有或不帶有L後綴（表示long類型）的int將用於從python dict中檢索值。一個簡單的演示：

>>> D = {14929294667170000000001005 : 'some value'} 
>>> D[14929294667170000000001005] 
'some value' 
>>> D[14929294667170000000001005L] 
'some value'