Re: [boost] BPL - method is not callable

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2001-11-01 14:55:33

Hi Nick,

I'm just going through old emails here. Sorry it's taken so long!

I have no clue as to why you should not find the object to be callable(). It
certainly can be called!
The Python-1.5 source shows that this code is being executed:

int
PyCallable_Check(x)
 PyObject *x;
{
 if (x == NULL)
  return 0;
 if (x->ob_type->tp_call != NULL ||
     PyFunction_Check(x) ||
     PyMethod_Check(x) ||
     PyCFunction_Check(x) ||
     PyClass_Check(x))
  return 1;

and I know that the tp_call slot of the type object for bound_function
objects is set! It certainly appears to work with Python-2.2b1

Sorry,
Dave

===================================================
  David Abrahams, C++ library designer for hire
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          email: david.abrahams_at_[hidden]
===================================================

----- Original Message -----
From: <nickm_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Wednesday, September 19, 2001 8:05 AM
Subject: [boost] BPL - method is not callable

> Hi all,
>
> I am using Boost.Python to export a class library to Python,
> and I have following:
>
> def invoke(c):
>   if callable(c):
>     c()
>   else:
>     print c
>     print "object not callable"
>
>
> "obj" is instance of one of the exported classes, and
> "method" is one of its methods
>
> invoke(obj.method) gives me:
>
> <class boost::python::detail::bound_function object at 0038BDE0>
> object not callable
>
> How can I correct this?
>
> Thanks
> Nikolay
>
>
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