本文整理汇总了Python中copy_reg._extension_cache方法的典型用法代码示例。如果您正苦于以下问题：Python copy_reg._extension_cache方法的具体用法？Python copy_reg._extension_cache怎么用？Python copy_reg._extension_cache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copy_reg的用法示例。
在下文中一共展示了copy_reg._extension_cache方法的4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: load_global_ext
# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _extension_cache [as 别名]
def load_global_ext(coder, setValue):
if coder.allowsKeyedCoding():
code = coder.decodeIntForKey_(kCODE)
else:
code = coder.decodeValueOfObjCType_at_(objc._C_INT, None)
nil = []
obj = copyreg._extension_cache.get(code, nil)
if obj is not nil:
return obj
key = copyreg._inverted_registry.get(code)
if not key:
raise ValueError("unregistered extension code %d" % code)
module, name = key
mod = import_module(module)
klass = _getattribute(mod, name)
copyreg._extension_cache[code] = klass
return klass 示例2: test_extension_cache
# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _extension_cache [as 别名]
def test_extension_cache(self):
#set and get the attribute
rand = random.Random()
value = rand.getrandbits(8)
copy_reg._extension_cache['cache1'] = value
result = copy_reg._extension_cache['cache1']
self.assertTrue(result == value,
"The get and set of the attribute failed")
value = rand.getrandbits(16)
copy_reg._extension_cache['cache2'] = value
result = copy_reg._extension_cache['cache2']
self.assertTrue(result == value,
"The get and set of the attribute failed")
#change the value of the attribue
value2 = rand.getrandbits(4)
copy_reg._extension_cache['cache1'] = value2
result = copy_reg._extension_cache['cache1']
self.assertTrue(result == value2,
"The get and set of the attribute failed")
if not copy_reg._extension_cache.has_key('cache1') or not copy_reg._extension_cache.has_key('cache2'):
Fail("Set of the attribute failed")
copy_reg.clear_extension_cache()
if copy_reg._extension_cache.has_key('cache1') or copy_reg._extension_cache.has_key('cache2'):
Fail("The method clear_extension_cache did not work correctly ") 示例3: test_extension_registry
# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _extension_cache [as 别名]
def test_extension_registry(self):
mod, func, code = 'junk1 ', ' junk2', 0xabcd
e = ExtensionSaver(code)
try:
# Shouldn't be in registry now.
self.assertRaises(ValueError, copy_reg.remove_extension,
mod, func, code)
copy_reg.add_extension(mod, func, code)
# Should be in the registry.
self.assertTrue(copy_reg._extension_registry[mod, func] == code)
self.assertTrue(copy_reg._inverted_registry[code] == (mod, func))
# Shouldn't be in the cache.
self.assertNotIn(code, copy_reg._extension_cache)
# Redundant registration should be OK.
copy_reg.add_extension(mod, func, code) # shouldn't blow up
# Conflicting code.
self.assertRaises(ValueError, copy_reg.add_extension,
mod, func, code + 1)
self.assertRaises(ValueError, copy_reg.remove_extension,
mod, func, code + 1)
# Conflicting module name.
self.assertRaises(ValueError, copy_reg.add_extension,
mod[1:], func, code )
self.assertRaises(ValueError, copy_reg.remove_extension,
mod[1:], func, code )
# Conflicting function name.
self.assertRaises(ValueError, copy_reg.add_extension,
mod, func[1:], code)
self.assertRaises(ValueError, copy_reg.remove_extension,
mod, func[1:], code)
# Can't remove one that isn't registered at all.
if code + 1 not in copy_reg._inverted_registry:
self.assertRaises(ValueError, copy_reg.remove_extension,
mod[1:], func[1:], code + 1)
finally:
e.restore()
# Shouldn't be there anymore.
self.assertNotIn((mod, func), copy_reg._extension_registry)
# The code *may* be in copy_reg._extension_registry, though, if
# we happened to pick on a registered code. So don't check for
# that.
# Check valid codes at the limits.
for code in 1, 0x7fffffff:
e = ExtensionSaver(code)
try:
copy_reg.add_extension(mod, func, code)
copy_reg.remove_extension(mod, func, code)
finally:
e.restore()
# Ensure invalid codes blow up.
for code in -1, 0, 0x80000000L:
self.assertRaises(ValueError, copy_reg.add_extension,
mod, func, code) 示例4: test_extension_registry
# 需要导入模块: import copy_reg [as 别名]
# 或者: from copy_reg import _extension_cache [as 别名]
def test_extension_registry(self):
mod, func, code = 'junk1 ', ' junk2', 0xabcd
e = ExtensionSaver(code)
try:
# Shouldn't be in registry now.
self.assertRaises(ValueError, copy_reg.remove_extension,
mod, func, code)
copy_reg.add_extension(mod, func, code)
# Should be in the registry.
self.assert_(copy_reg._extension_registry[mod, func] == code)
self.assert_(copy_reg._inverted_registry[code] == (mod, func))
# Shouldn't be in the cache.
self.assert_(code not in copy_reg._extension_cache)
# Redundant registration should be OK.
copy_reg.add_extension(mod, func, code) # shouldn't blow up
# Conflicting code.
self.assertRaises(ValueError, copy_reg.add_extension,
mod, func, code + 1)
self.assertRaises(ValueError, copy_reg.remove_extension,
mod, func, code + 1)
# Conflicting module name.
self.assertRaises(ValueError, copy_reg.add_extension,
mod[1:], func, code )
self.assertRaises(ValueError, copy_reg.remove_extension,
mod[1:], func, code )
# Conflicting function name.
self.assertRaises(ValueError, copy_reg.add_extension,
mod, func[1:], code)
self.assertRaises(ValueError, copy_reg.remove_extension,
mod, func[1:], code)
# Can't remove one that isn't registered at all.
if code + 1 not in copy_reg._inverted_registry:
self.assertRaises(ValueError, copy_reg.remove_extension,
mod[1:], func[1:], code + 1)
finally:
e.restore()
# Shouldn't be there anymore.
self.assert_((mod, func) not in copy_reg._extension_registry)
# The code *may* be in copy_reg._extension_registry, though, if
# we happened to pick on a registered code. So don't check for
# that.
# Check valid codes at the limits.
for code in 1, 0x7fffffff:
e = ExtensionSaver(code)
try:
copy_reg.add_extension(mod, func, code)
copy_reg.remove_extension(mod, func, code)
finally:
e.restore()
# Ensure invalid codes blow up.
for code in -1, 0, 0x80000000L:
self.assertRaises(ValueError, copy_reg.add_extension,
mod, func, code)