本文整理汇总了Python中pylibmc.NotFound方法的典型用法代码示例。如果您正苦于以下问题：Python pylibmc.NotFound方法的具体用法？Python pylibmc.NotFound怎么用？Python pylibmc.NotFound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pylibmc的用法示例。
在下文中一共展示了pylibmc.NotFound方法的6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: incr
# 需要导入模块: import pylibmc [as 别名]
# 或者: from pylibmc import NotFound [as 别名]
def incr(self, key, delta=1, version=None):
key = self.make_key(key, version=version)
# memcached doesn't support a negative delta
if delta < 0:
return self._cache.decr(key, -delta)
try:
val = self._cache.incr(key, delta)
# python-memcache responds to incr on non-existent keys by
# raising a ValueError, pylibmc by raising a pylibmc.NotFound
# and Cmemcache returns None. In all cases,
# we should raise a ValueError though.
except self.LibraryValueNotFoundException:
val = None
if val is None:
raise ValueError("Key '%s' not found" % key)
return val 示例2: decr
# 需要导入模块: import pylibmc [as 别名]
# 或者: from pylibmc import NotFound [as 别名]
def decr(self, key, delta=1, version=None):
key = self.make_key(key, version=version)
# memcached doesn't support a negative delta
if delta < 0:
return self._cache.incr(key, -delta)
try:
val = self._cache.decr(key, delta)
# python-memcache responds to incr on non-existent keys by
# raising a ValueError, pylibmc by raising a pylibmc.NotFound
# and Cmemcache returns None. In all cases,
# we should raise a ValueError though.
except self.LibraryValueNotFoundException:
val = None
if val is None:
raise ValueError("Key '%s' not found" % key)
return val 示例3: _cache
# 需要导入模块: import pylibmc [as 别名]
# 或者: from pylibmc import NotFound [as 别名]
def _cache(self, key, data):
current_lock = self._lock_value()
with self.client_pool.reserve() as client:
while True:
value, cid = client.gets(key)
# If there is a lock value in Memcache that is
# different from our own we have to bail.
if value and value.startswith(self._lock_prefix) and value != current_lock:
return
# If there isn't a value at all, we have to add one
# and try again.
if cid is None:
client.add(key, current_lock, self._lock_timeout)
continue
try:
return client.cas(key, data, cid, self._item_timeout)
# There is a small chance that between the `gets` and
# "now" the key will have been deleted by a concurrent
# process, so we account for that possibility here.
except pylibmc.NotFound: # pragma: no cover
return 示例4: __init__
# 需要导入模块: import pylibmc [as 别名]
# 或者: from pylibmc import NotFound [as 别名]
def __init__(self, server, params, library, value_not_found_exception):
super(BaseMemcachedCache, self).__init__(params)
if isinstance(server, six.string_types):
self._servers = server.split(';')
else:
self._servers = server
# The exception type to catch from the underlying library for a key
# that was not found. This is a ValueError for python-memcache,
# pylibmc.NotFound for pylibmc, and cmemcache will return None without
# raising an exception.
self.LibraryValueNotFoundException = value_not_found_exception
self._lib = library
self._options = params.get('OPTIONS', None) 示例5: __init__
# 需要导入模块: import pylibmc [as 别名]
# 或者: from pylibmc import NotFound [as 别名]
def __init__(self, server, params, library, value_not_found_exception):
super(BaseMemcachedCache, self).__init__(params)
if isinstance(server, string_types):
self._servers = server.split(';')
else:
self._servers = server
# The exception type to catch from the underlying library for a key
# that was not found. This is a ValueError for python-memcache,
# pylibmc.NotFound for pylibmc, and cmemcache will return None without
# raising an exception.
self.LibraryValueNotFoundException = value_not_found_exception
self._lib = library
self._options = params.get('OPTIONS', None) 示例6: __init__
# 需要导入模块: import pylibmc [as 别名]
# 或者: from pylibmc import NotFound [as 别名]
def __init__(self, server, params):
import pylibmc
self._local = local()
#pylibmc.NotFound需更改为None,否则在本地会出现错误，模拟的sae.memcache中没有NotFound属性
super(SaePyLibMCCache, self).__init__(server, params, library=pylibmc, value_not_found_exception=None)