Python Implements Caching
Project description
Python Implements Caching
特点
✓ 支持的缓存策略 :random, LRU
✓ 使用装饰器的形式来使用缓存
✓ 支持 Hashable keys (dictionaries, lists, sets)
✓ 支持超时缓存处理
✓ 支持缓存数据统计
安装
pip install mycache
使用
cache 装饰器
from mycache import cache
@cache()
def example():
print("你好,这里是mycache测试案例")
example() # 你好,这里是mycache测试案例
example() # 没有任何输出
import time
from mycache import cache
@cache()
def long_computation(x):
print("Performing long computation...")
time.sleep(1)
return x + 1
long_computation(5) # Sleeps for 1 second and returns 6
long_computation(5) # Immediately returns 6
long_computation(6) # Sleeps for 1 second and returns 7
long_computation(6) # Immediately returns 7
long_computation(6) # And again
缓存类
import time
from datetime import timedelta
from mycache import Cache
cache = Cache()
cache.save("a", 1)
cache.save("b", 2)
cache.save("c", 3, expire_in=timedelta(seconds=10))
cache.has("c") # returns True
cache.get("a") # returns 1
time.sleep(10)
cache.has("c") # False
cache.get("c") # raises KeyError
设置缓存类型
from mycache import Cache
from mycache.policies import LRU
"""
设置缓存处理方式和缓存个数
"""
cache = Cache(max_items=2, replacement_policy=LRU())
cache.save("a", 1)
cache.save("b", 2)
cache.save("c", 3)
cache.has("a") # returns False
cache.has("b") # returns True
cache.save("d", 4)
cache.has("b") # returns False
Disable deepcopy for keys
from mycache import cache
"""
缓存类和缓存装饰器接受' copy_keys '参数。
如果你能保证即使键是可变的也不会改变,
你可以把它设置为“True”来加快速度。
"""
@cache(copy_keys=False)
def faster_caching(x):
return x
faster_caching({1, 2, 3}) # returns {1, 2, 3}
使用相关工具
make lint:pylintandpycodestylemake typecheck:mypymake test:pytestmake coverage:pytestwithpytest-covmake quality:radonmake build:setup.py
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