本文整理汇总了Python中persistent.mapping.PersistentMapping.foo方法的典型用法代码示例。如果您正苦于以下问题：Python PersistentMapping.foo方法的具体用法？Python PersistentMapping.foo怎么用？Python PersistentMapping.foo使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类persistent.mapping.PersistentMapping的用法示例。
在下文中一共展示了PersistentMapping.foo方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: checkPackKeepNewObjects
# 需要导入模块: from persistent.mapping import PersistentMapping [as 别名]
# 或者: from persistent.mapping.PersistentMapping import foo [as 别名]
def checkPackKeepNewObjects(self):
# Packing should not remove objects created or modified after
# the pack time, even if they are unreferenced.
db = DB(self._storage)
try:
# add some data to be packed
c = db.open()
extra1 = PersistentMapping()
c.add(extra1)
extra2 = PersistentMapping()
c.add(extra2)
transaction.commit()
# Choose the pack time
now = packtime = time.time()
while packtime <= now:
time.sleep(0.1)
packtime = time.time()
while packtime == time.time():
time.sleep(0.1)
extra2.foo = "bar"
extra3 = PersistentMapping()
c.add(extra3)
transaction.commit()
self._storage.pack(packtime, referencesf)
# extra1 should have been garbage collected
self.assertRaises(KeyError, self._storage.load, extra1._p_oid, "")
# extra2 and extra3 should both still exist
self._storage.load(extra2._p_oid, "")
self._storage.load(extra3._p_oid, "")
finally:
db.close()