Neal,
Try adding:
register_ptr_to_python< boost::shared_ptr >();
to your BOOST_PYTHON_MODULE(test2) section.
Hope this helps,
Bill
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Neal Becker [EMAIL
PROTECTED]
Sent: Monday, November 24, 2008 6:15 PM
To: [email protected]
Subject: [C++-sig] problem w/intermodule communication
Here is a simple example.
---
test1.cc
#include
#include
#include
#include
using namespace boost::python;
struct A {
A (int _x) : x (_x) {}
int x;
};
BOOST_PYTHON_MODULE(test1) {
class_ ("A", init());
}
--
test2.cc
#include
#include
#include
#include
#include
using namespace boost::python;
struct A {
A (int _x) : x (_x) {}
int x;
};
struct B {
B (boost::shared_ptr _a) : a (_a) {}
boost::shared_ptr a;
};
BOOST_PYTHON_MODULE(test2) {
class_ ("B", init >())
.def_readonly ("a", &B::a)
;
}
-
test12.py
from test1 import A
from test2 import B
a = A(1)
b = B(a)
print b.a
-
TypeError: No to_python (by-value) converter found for C++ type:
boost::shared_ptr
How can I solve this? Now consider:
test3.cc
#include
#include
#include
#include
using namespace boost::python;
struct A {
A (int _x) : x (_x) {}
int x;
};
struct B {
B (boost::shared_ptr _a) : a (_a) {}
boost::shared_ptr a;
};
BOOST_PYTHON_MODULE(test3) {
class_ ("A", init());
class_ ("B", init >())
.def_readonly ("a", &B::a)
;
}
-
test13.py
from test3 import A, B
a = A(1)
b = B(a)
print b.a
---
So if both are in same module, no problem. If they are in different modules it
doesn't work. Any ideas?
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