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# StringTypes is already outdated.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