Python使用lru對dict和list進行緩存：pyLruCache。

pyLruCache.py

for Dict

from pyLruCache import 
In [1]: from pyLruCache import 

In [2]: a = pyLruListCache(3)
In [3]: for i in a.iteritems():
   ...:     print i
   ...:
In [4]:
In [4]: a[1] = 1
In [5]: a[2] = 2
In [6]: a[3] = 3
In [7]: for i in a.iteritems():
   ...:     print i
   ...:
(1, 1)
(2, 2)
(3, 3)
In [8]: a[4] = 4
In [9]: for i in a.iteritems():
    print i
   ...:
(2, 2)
(3, 3)
(4, 4)
In [10]: print a[2]
2
In [11]: a[5] = 5
In [12]: for i in a.iteritems():
    print i
   ....:
(4, 4)
(2, 2)
(5, 5)
In [13]: a[6] = []
In [14]: a[6].append(1)
In [15]: a[6].append(2)
In [16]: a[6].append(3)
In [17]: for i in a.iteritems():
    print i
   ....:
(2, 2)
(5, 5)
(6, [1, 2, 3])
In [18]: a[7]=7
In [19]: for i in a.iteritems():
    print i
   ....:
(5, 5)
(6, [1, 2, 3])
(7, 7)</pre> 
for List

rom pyLruCache import pyLruListCache

a = pyLruListCache(5)
for i in range(100):
    a.appendd(i)</pre> 
the result in debug mode 

{96: 96, 92: 92, 93: 93, 94: 94, 95: 95} 92

{96: 96, 97: 97, 93: 93, 94: 94, 95: 95} 93

{96: 96, 97: 97, 98: 98, 94: 94, 95: 95}

安裝

pyLruCache can be installed using Pypi, pip install pyLruCache




項目主頁：http://www.baiduhome.net/lib/view/home/1414985422825
</code>