以下是例外信息：
File "/usr/lib/python2.7/collections.py", line 113, in items
return [(key, self[key]) for key in self]
exceptions.KeyError: u'abc'
我认为如果密钥abc不在dict中，则不应显示密钥for key in self，因此abc不会返回ordered_dict = collections.OrderedDict()
... do something to add elements to ordered_dict
def foo():
for k, b in ordered_dict.items():
if time.time() - b > 10:
del ordered_dict[k]
else:
twisted.internet.reactor.callLater(1, foo)
def bar(k):
ordered_dict[k] = time.time()
... bar() is called constantly to add values, and foo() is called at the beginning of the program
代码是这样的：
KeyError这里有什么不对吗？ twisted随机发生，并非总是如此。
python版本2.7.3
使用time和X =
t r v
a 4 7 3
b 0 1 8
c 0 7 9
d 9 6 0
e 1 3 4
f 8 7 2
g 5 7 4
h 5 1 0
i 9 8 6
j 4 6 7
模块