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34 # from collections import defaultdict
36 from dbworker import DBWorker
39 class Config(DBWorker):
40 """Config are properties holding persistent information about system state.
43 def __init__(self, **params):
44 DBWorker.__init__(self, **params)
45 execute = self.execute
47 execute(""" create table if not exists config
48 ( key text primary key,
52 def get_value(self, key):
53 """Return configuration value for key."""
55 q = "select value from config where key = ?"
56 self.execute(q, (key,))
62 def set_value(self, key, value):
63 """Set configuration entry.
66 q = "insert into config (key, value) values (?, ?)"
67 id = self.execute(q, (key, value)).lastrowid