Thomas Heller wrote:
Christian Heimes schrieb:
Thomas Heller wrote:
but this is very ugly, imo. Is there another way?
The raw_func instances that I have are not descriptors (they
do not implement a __get__() method...)
I've written PyInstanceMethod_Type for this use case. It's not (yet)
available for Python code. Barry hasn't decided whether he should expose
the type so late in the release cycle or not. See
http://bugs.python.org/issue3787 and
http://docs.python.org/dev/3.0/c-api/method.html?highlight=pyinstancemethod#PyInstanceMethod_Type
Ok, so one has to write an extension to access or expose it.
Oh, wait - there's ctypes:
Python 3.0rc1 (r30rc1:66507, Sep 18 2008, 14:47:08) [MSC v.1500 32 bit (Intel)]
on win32
Type "help", "copyright", "credits" or "license" for more information.
from ctypes import *
pythonapi.PyInstanceMethod_New.restype = py_object
pythonapi.PyInstanceMethod_New.argtypes = [py_object]
instancemethod = pythonapi.PyInstanceMethod_New
class Example:
... pass
...
Example.id = instancemethod(id)
x = Example()
x.id()
12597296
id(x)
12597296
A pyCapi module that exposed via ctypes useful C functions not otherwise
accessible, with predefinition of restype and argtypes and anything else
needed, might make a nice addition to PyPI if not the stdlib. You have
done two here and I believe others have posted others.
tjr
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