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comparison lib/python3.8/site-packages/pip/_vendor/cachecontrol/cache.py @ 1:64071f2a4cf0 draft default tip

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author guerler
date Mon, 27 Jul 2020 03:55:49 -0400
parents 9e54283cc701
children
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0:9e54283cc701 1:64071f2a4cf0
1 """
2 The cache object API for implementing caches. The default is a thread
3 safe in-memory dictionary.
4 """
5 from threading import Lock
6
7
8 class BaseCache(object):
9
10 def get(self, key):
11 raise NotImplementedError()
12
13 def set(self, key, value):
14 raise NotImplementedError()
15
16 def delete(self, key):
17 raise NotImplementedError()
18
19 def close(self):
20 pass
21
22
23 class DictCache(BaseCache):
24
25 def __init__(self, init_dict=None):
26 self.lock = Lock()
27 self.data = init_dict or {}
28
29 def get(self, key):
30 return self.data.get(key, None)
31
32 def set(self, key, value):
33 with self.lock:
34 self.data.update({key: value})
35
36 def delete(self, key):
37 with self.lock:
38 if key in self.data:
39 self.data.pop(key)