[PyKDE] ANN: PyQt v3.14, SIP v4.2, QScintilla v1.5 Released

[Phil Thompson]

On Friday 11 March 2005 6:08 pm, Paul F. Kunz wrote:
>    I ahve the following Python class defined...
>
> class Linear ( FunctionBase ) :
>     def __init__ ( self, other = None ) :
>         if other :
>             FunctionBase.__init__( self, other )
>             print "copy"
>             self.initialize ()
>         else:
>             FunctionBase.__init__( self )
>             print "default"
>             self.initialize ()
>
>     def clone ( self ) :
>         print "clone"
>         return Linear ( self )
>
>
> with some member functions not shown.  The class FunctionBase is a C++
> abstract base class interfaced via FunctionBase.sip It appears that
> after clone() calls the copy constructor (speaking in C++ terms), the
> C++ object is deleted.

Which C++ object? The original, or the clone?

> How do I prevent that?   Or am I trying to 
> clone the function in an in correct way (I know C++ better than
> Python)?

Clone the function? I assume you mean clone the instance.

There is nothing obviously wrong with the Python. You can try building your 
module with tracing enabled (sip -r) to see exactly when the C++ dtors are 
being called.

Phil