本文整理汇总了Python中twisted._checkRequirements函数的典型用法代码示例。如果您正苦于以下问题：Python _checkRequirements函数的具体用法？Python _checkRequirements怎么用？Python _checkRequirements使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了_checkRequirements函数的8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: test_oldPython
def test_oldPython(self):
"""
L{_checkRequirements} raises L{ImportError} when run on a version of
Python that is too old.
"""
sys.version_info = self.unsupportedPythonVersion
with self.assertRaises(ImportError) as raised:
_checkRequirements()
self.assertEqual("Twisted requires Python %d.%d or later." % self.supportedPythonVersion, str(raised.exception))示例2: test_oldZopeInterface
def test_oldZopeInterface(self):
"""
L{_checkRequirements} raises L{ImportError} when the C{zope.interface}
package installed is old enough that C{implementer_only} is not included
(added in zope.interface 3.6).
"""
with SetAsideModule("zope"):
_install(_zope35)
with self.assertRaises(ImportError) as raised:
_checkRequirements()
self.assertEqual("Twisted requires zope.interface 3.6.0 or later.", str(raised.exception))示例3: test_setupNoCheckRequirements
def test_setupNoCheckRequirements(self):
"""
L{_checkRequirements} doesn't check for C{zope.interface} compliance
when C{setuptools._TWISTED_NO_CHECK_REQUIREMENTS} is set.
"""
with SetAsideModule("setuptools"):
setuptools = ModuleType("setuptools")
setuptools._TWISTED_NO_CHECK_REQUIREMENTS = True
sys.modules["setuptools"] = setuptools
with SetAsideModule("zope"):
sys.modules["zope"] = None
_checkRequirements()示例4: test_missingZopeInterface
def test_missingZopeInterface(self):
"""
L{_checkRequirements} raises L{ImportError} when the C{zope.interface}
package is not installed.
"""
with SetAsideModule("zope"):
# Create a minimal module to represent the zope namespace package,
# but don't give it an "interface" attribute.
sys.modules["zope"] = ModuleType("zope")
with self.assertRaises(ImportError) as raised:
_checkRequirements()
self.assertEqual(
"Twisted requires zope.interface %d.%d.%d or later: no module "
"named zope.interface." % self.supportedZopeInterfaceVersion,
str(raised.exception))示例5: test_missingZopeNamespace
def test_missingZopeNamespace(self):
"""
L{_checkRequirements} raises L{ImportError} when the C{zope} namespace
package is not installed.
"""
with SetAsideModule("zope"):
# After an import for a module fails, it gets a None value in
# sys.modules as a cache of that negative result. Future import
# attempts see it and fail fast without checking the system again.
sys.modules["zope"] = None
with self.assertRaises(ImportError) as raised:
_checkRequirements()
self.assertEqual(
"Twisted requires zope.interface %d.%d.%d or later: no module "
"named zope.interface." % self.supportedZopeInterfaceVersion,
str(raised.exception))示例6: test_newPythonPy3
def test_newPythonPy3(self):
"""
L{_checkRequirements} returns C{None} when run on a version of Python
that is sufficiently new.
"""
sys.version_info = self.Py3supportedPythonVersion
self.assertEqual(None, _checkRequirements())示例7: test_newPython
def test_newPython(self):
"""
L{_checkRequirements} returns L{None} when run on a version of Python
that is sufficiently new.
"""
sys.version_info = self.supportedPythonVersion
self.assertIsNone(_checkRequirements())示例8: test_newZopeInterface
def test_newZopeInterface(self):
"""
L{_checkRequirements} returns C{None} when C{zope.interface} is
installed and new enough.
"""
with SetAsideModule("zope"):
_install(_zope36)
self.assertEqual(None, _checkRequirements())