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annotate lib/python3.8/site-packages/pip/_vendor/cachecontrol/cache.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 """
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2 The cache object API for implementing caches. The default is a thread
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3 safe in-memory dictionary.
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4 """
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5 from threading import Lock
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6
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7
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8 class BaseCache(object):
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9
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10 def get(self, key):
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11 raise NotImplementedError()
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12
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13 def set(self, key, value):
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14 raise NotImplementedError()
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16 def delete(self, key):
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17 raise NotImplementedError()
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18
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19 def close(self):
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20 pass
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23 class DictCache(BaseCache):
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24
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25 def __init__(self, init_dict=None):
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26 self.lock = Lock()
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27 self.data = init_dict or {}
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29 def get(self, key):
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30 return self.data.get(key, None)
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32 def set(self, key, value):
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33 with self.lock:
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34 self.data.update({key: value})
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35
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36 def delete(self, key):
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37 with self.lock:
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38 if key in self.data:
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39 self.data.pop(key)