Re: [Boost-users] Exposing C++ Instances to Python

25 May 2010


      AMDG

Leonhard Weber wrote:
...
EngineCallback* test = new EngineCallback;
// Entrypoint for Python to come ant fetch the Application Callback
shared_ptr<EngineCallback> PyCallback( EngineCallback* &test );
<snip>
# test.py
from EngineCallback import PyCallback
from EngineCallback import EngineCallback
test = PyCallback()
PyCallback takes one argument.  Hence the exception below.
Did you intend to use the global "test" instead of taking test
as an argument in PyCallback?
...
Traceback (most recent call last):
  File "test.py", line 5, in <module>
    test = PyCallback()
Boost.Python.ArgumentError: Python argument types in
    EngineCallback.PyCallback()
did not match C++ signature:
    PyCallback(EngineCallback* {lvalue})
In Christ,
Steven Watanabe