types模块成员： 定义所有类型符号的名字，在标准的解释器中所知。
['BooleanType', 'BufferType', 'BuiltinFunctionType', 'BuiltinMethodType', 'ClassType', 'CodeType', 'ComplexType', 'DictProxyType', 'DictType', 'DictionaryType', 'EllipsisType', 'FileType', 'FloatType', 'FrameType', 'FunctionType', 'GeneratorType', 'GetSetDescriptorType', 'InstanceType', 'IntType', 'LambdaType', 'ListType', 'LongType', 'MemberDescriptorType', 'MethodType', 'ModuleType', 'NoneType', 'NotImplementedType', 'ObjectType', 'SliceType', 'StringType', 'StringTypes', 'TracebackType', 'TupleType', 'TypeType', 'UnboundMethodType', 'UnicodeType', 'XRangeType', '__builtins__', '__doc__', '__file__', '__name__', '__package__']
内置函数( built-in function )：
isinstance， len， repr，，
内置类型 ( type )：
bool, buffer, complex, dict, ellipsis, float, int，list, long，NoneType, object, slice, str, tuple, type, xrange, unicode
isinstance
isinstance(...) isinstance(object, class-or-type-or-tuple) -> bool Return whether an object is an instance of a class or of a subclass thereof. With a type as second argument, return whether that is the object's type. The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for isinstance(x, A) or isinstance(x, B) or ... (etc.).
repr
repr(...)
repr(object) -> string
Return the canonical string representation of the object.
For most object types, eval(repr(object)) == object.
type
class type(object) | type(object) -> the object's type | type(name, bases, dict) -> a new type | | Methods defined here: | | __call__(...) | x.__call__(...) <==> x(...) | | __delattr__(...) | x.__delattr__('name') <==> del x.name | | __eq__(...) | x.__eq__(y) <==> x==y | | __ge__(...) | x.__ge__(y) <==> x>=y | | __getattribute__(...) | x.__getattribute__('name') <==> x.name | | __gt__(...) | x.__gt__(y) <==> x>y | | __hash__(...) | x.__hash__() <==> hash(x) | | __init__(...) | x.__init__(...) initializes x; see help(type(x)) for signature | | __instancecheck__(...) | __instancecheck__() -> bool | check if an object is an instance | | __le__(...) | x.__le__(y) <==> x<=y | | __lt__(...) | x.__lt__(y) <==> x<y | | __ne__(...) | x.__ne__(y) <==> x!=y | | __repr__(...) | x.__repr__() <==> repr(x) | | __setattr__(...) | x.__setattr__('name', value) <==> x.name = value | | __subclasscheck__(...) | __subclasscheck__() -> bool | check if a class is a subclass | | __subclasses__(...) | __subclasses__() -> list of immediate subclasses | | mro(...) | mro() -> list | return a type's method resolution order | | ---------------------------------------------------------------------- | Data descriptors defined here: | | __abstractmethods__ | | __base__ | | __bases__ | | __basicsize__ | | __dict__ | | __dictoffset__ | | __flags__ | | __itemsize__ | | __mro__ | | __weakrefoffset__ | | ---------------------------------------------------------------------- | Data and other attributes defined here: | | __new__ = <built-in method __new__ of type object> | T.__new__(S, ...) -> a new object with type S, a subtype of T