ref: 0e6e44b06400e320145eb5115edce054cfd26d1f
dir: /sys/lib/python/types.py/
"""Define names for all type symbols known in the standard interpreter. Types that are part of optional modules (e.g. array) are not listed. """ import sys # Iterators in Python aren't a matter of type but of protocol. A large # and changing number of builtin types implement *some* flavor of # iterator. Don't check the type! Use hasattr to check for both # "__iter__" and "next" attributes instead. NoneType = type(None) TypeType = type ObjectType = object IntType = int LongType = long FloatType = float BooleanType = bool try: ComplexType = complex except NameError: pass StringType = str # StringTypes is already outdated. Instead of writing "type(x) in # types.StringTypes", you should use "isinstance(x, basestring)". But # we keep around for compatibility with Python 2.2. try: UnicodeType = unicode StringTypes = (StringType, UnicodeType) except NameError: StringTypes = (StringType,) BufferType = buffer TupleType = tuple ListType = list DictType = DictionaryType = dict def _f(): pass FunctionType = type(_f) LambdaType = type(lambda: None) # Same as FunctionType try: CodeType = type(_f.func_code) except RuntimeError: # Execution in restricted environment pass def _g(): yield 1 GeneratorType = type(_g()) class _C: def _m(self): pass ClassType = type(_C) UnboundMethodType = type(_C._m) # Same as MethodType _x = _C() InstanceType = type(_x) MethodType = type(_x._m) BuiltinFunctionType = type(len) BuiltinMethodType = type([].append) # Same as BuiltinFunctionType ModuleType = type(sys) FileType = file XRangeType = xrange try: raise TypeError except TypeError: try: tb = sys.exc_info()[2] TracebackType = type(tb) FrameType = type(tb.tb_frame) except AttributeError: # In the restricted environment, exc_info returns (None, None, # None) Then, tb.tb_frame gives an attribute error pass tb = None; del tb SliceType = slice EllipsisType = type(Ellipsis) DictProxyType = type(TypeType.__dict__) NotImplementedType = type(NotImplemented) # Extension types defined in a C helper module. XXX There may be no # equivalent in implementations other than CPython, so it seems better to # leave them undefined then to set them to e.g. None. try: import _types except ImportError: pass else: GetSetDescriptorType = type(_types.Helper.getter) MemberDescriptorType = type(_types.Helper.member) del _types del sys, _f, _g, _C, _x # Not for export