50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
"""
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Define names for built-in types that aren't directly accessible as a builtin.
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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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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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CodeType = type(_f.__code__)
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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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MethodType = type(_C()._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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try:
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raise TypeError
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except TypeError:
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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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tb = None; del tb
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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, # Not for export
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