Source Code for Module types

 1  """Define names for all type symbols known in the standard interpreter. 
 2   
 3  Types that are part of optional modules (e.g. array) are not listed. 
 4  """ 
 5  import sys 
 6   
 7  # Iterators in Python aren't a matter of type but of protocol.  A large 
 8  # and changing number of builtin types implement *some* flavor of 
 9  # iterator.  Don't check the type!  Use hasattr to check for both 
10  # "__iter__" and "next" attributes instead. 
11   
12  NoneType = type(None) 
13  TypeType = type 
14  ObjectType = object 
15   
16  IntType = int 
17  LongType = long 
18  FloatType = float 
19  BooleanType = bool 
20  try: 
21      ComplexType = complex 
22  except NameError: 
23      pass 
24   
25  StringType = str 
26   
27  # StringTypes is already outdated.  Instead of writing "type(x) in 
28  # types.StringTypes", you should use "isinstance(x, basestring)".  But 
29  # we keep around for compatibility with Python 2.2. 
30  try: 
31      UnicodeType = unicode 
32      StringTypes = (StringType, UnicodeType) 
33  except NameError: 
34      StringTypes = (StringType,) 
35   
36  BufferType = buffer 
37   
38  TupleType = tuple 
39  ListType = list 
40  DictType = DictionaryType = dict 
41   
42 -def _f(): pass 
43  FunctionType = type(_f) 
44  LambdaType = type(lambda: None)         # Same as FunctionType 
45  try: 
46      CodeType = type(_f.func_code) 
47  except RuntimeError: 
48      # Execution in restricted environment 
49      pass 
50   
51 -def _g(): 
52      yield 1 
53  GeneratorType = type(_g()) 
54   
55 -class _C: 
56 -    def _m(self): pass 
57  ClassType = type(_C) 
58  UnboundMethodType = type(_C._m)         # Same as MethodType 
59  _x = _C() 
60  InstanceType = type(_x) 
61  MethodType = type(_x._m) 
62   
63  BuiltinFunctionType = type(len) 
64  BuiltinMethodType = type([].append)     # Same as BuiltinFunctionType 
65   
66  ModuleType = type(sys) 
67  FileType = file 
68  XRangeType = xrange 
69   
70  try: 
71      raise TypeError 
72  except TypeError: 
73      try: 
74          tb = sys.exc_info()[2] 
75          TracebackType = type(tb) 
76          FrameType = type(tb.tb_frame) 
77      except AttributeError: 
78          # In the restricted environment, exc_info returns (None, None, 
79          # None) Then, tb.tb_frame gives an attribute error 
80          pass 
81      tb = None; del tb 
82   
83  SliceType = slice 
84  EllipsisType = type(Ellipsis) 
85   
86  DictProxyType = type(TypeType.__dict__) 
87  NotImplementedType = type(NotImplemented) 
88   
89  # For Jython, the following two types are identical 
90  GetSetDescriptorType = type(FunctionType.func_code) 
91  MemberDescriptorType = type(FunctionType.func_globals) 
92   
93  del sys, _f, _g, _C, _x                           # Not for export 
94