[C++-sig] boost::python::dict problem

[Ralf W. Grosse-Kunstleve]

I have no explanation (other than that it looks like a bug/hole), but I'd expect
testdict[boost::python::make_tuple(1, 17)] to work as you expect.




----- Original Message ----
From: Martin Walser <martin.walser at gmx.de>
To: c++-sig at python.org
Sent: Wednesday, October 1, 2008 6:00:23 AM
Subject: [C++-sig] boost::python::dict problem

Hello! :)

Hmm... something odd's happening here when I'm trying to use a dict in my
boost python C++ Extension:


C++ Extension Code:

    dict testdict;

    ...

    testdict[1,17]="huhu";
    string test = extract<string>(testdict[1,17]);        //access to
dict: works!
    mLog->log(test); //writes test string to log... output: "huhu":
works!


But if I want to access the testdict class member in Python like here:

Python Code:

    print self.myCExtension.testdict


I get this output:

    {17: 'huhu'}


While it should be {(1,17): 'huhu'}


Doing this with a bigger dict results in a output were most entries are
missing.
When I output them in C++ all are there.
Accessing with self.myCExtension.testdict[1,17] in python doesn't work
either of course:
    
     KeyError: (1, 17)

Hum... 
ravening beast... this boost::python.


Martin

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