A postgresql backed cache system
Project description
DBCACHE
This small library allows to cache costly things within a postgresql table.
keys and values are bytes.
Example usage:
from time import sleep
from datetime import timedelta
from dbcache.api import dbcache
cache = dbcache('postgresql://foo:bar@postgresql/mydb')
assert cache.get(b'a') is None
cache.set(b'a', b'aaa')
assert cache.get(b'a') == b'aaa'
cache.set(b'b', b'bbb', lifetime=timedelta(seconds=1))
assert cache.get(b'b') == b'bbb'
sleep(1)
assert cache.get(b'b') is None
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