cpython/Lib/types.py
Guido van Rossum bae07c9baf Breaking ground for PEP 3137 implementation:
Get rid of buffer().  Use memoryview() in its place where possible.
In a few places, do things a bit different, because memoryview()
can't slice (yet).
2007-10-08 02:46:15 +00:00

76 lines
1.8 KiB
Python

"""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 = int
FloatType = float
BooleanType = bool
try:
ComplexType = complex
except NameError:
pass
TupleType = tuple
ListType = list
DictType = DictionaryType = dict
def _f(): pass
FunctionType = type(_f)
LambdaType = type(lambda: None) # Same as FunctionType
CodeType = type(_f.__code__)
def _g():
yield 1
GeneratorType = type(_g())
class _C:
def _m(self): pass
ClassType = type
UnboundMethodType = type(_C._m) # Same as MethodType
MethodType = type(_C()._m)
BuiltinFunctionType = type(len)
BuiltinMethodType = type([].append) # Same as BuiltinFunctionType
ModuleType = type(sys)
try:
raise TypeError
except TypeError:
tb = sys.exc_info()[2]
TracebackType = type(tb)
FrameType = type(tb.tb_frame)
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, # Not for export