isolation_level Get or set the current isolation level. None for autocommit mode or one of “DEFERRED”, “IMMEDIATE” or “EXCLUSIVE”. See section Controlling Transactions for a more detailed explanation.

ctypes.WINFUNCTYPE(restype, *argtypes, use_errno=False, use_last_error=False) Windows only: The returned function prototype creates functions that use the stdcall calling convention, except on Windows CE where WINFUNCTYPE() is the same as CFUNCTYPE(). The function will release the GIL during the call. use_errno and use_last_error have the same meaning as above.

UnexpectedException.example The Example that failed.

exception ImportWarning Base class for warnings about probable mistakes in module imports.

class ctypes.c_longdouble Represents the C long double datatype. The constructor accepts an optional float initializer. On platforms where sizeof(long double) == sizeof(double) it is an alias to c_double.

defaultTestResult() Return an instance of the test result class that should be used for this test case class (if no other result instance is provided to the run() method). For TestCase instances, this will always be an instance of TestResult; subclasses of TestCase should override this as necessary.

class weakref.WeakSet([elements]) Set class that keeps weak references to its elements. An element will be discarded when no strong reference to it exists any more.

textwrap.wrap(text, width=70, **kwargs) Wraps the single paragraph in text (a string) so every line is at most width characters long. Returns a list of output lines, without final newlines. Optional keyword arguments correspond to the instance attributes of TextWrapper, documented below. width defaults to 70. See the TextWrapper.wrap() method for additional details on how wrap() behaves.

class email.headerregistry.ParameterizedMIMEHeader MOME headers all start with the prefix ‘Content-‘. Each specific header has a certain value, described under the class for that header. Some can also take a list of supplemental parameters, which have a common format. This class serves as a base for all the MIME headers that take parameters. params A dictionary mapping parameter names to parameter values.

persistent_id(obj) Do nothing by default. This exists so a subclass can override it. If persistent_id() returns None, obj is pickled as usual. Any other value causes Pickler to emit the returned value as a persistent ID for obj. The meaning of this persistent ID should be defined by Unpickler.persistent_load(). Note that the value returned by persistent_id() cannot itself have a persistent ID. See Persistence of External Objects for details and examples of uses.