[Patches] [ python-Patches-1229280 ] optionally allow mutable builtin types

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Patches item #1229280, was opened at 2005-06-28 13:11
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Category: Core (C code)
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Greg Couch (gregcouch)
Assigned to: Nobody/Anonymous (nobody)
Summary: optionally allow mutable builtin types

Initial Comment:
Non-heap types, aka builtin types, cannot have their
attributes changed by Python code -- see
Objects/typeobject.c: type_setattro().  This limitation
is good for Python's core builtin types (int, float,
list, dict, ...), but not necessarily for non-heap
types in extension modules.  The attached patch allows
for non-heap types to mutate iff the
Py_TPFLAGS_MUTABLE_BUILTIN flag is set.

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