Thanks Bert, that put on hopefully the right track to do the same thing in C++. I can almost do it completely, and I'll detail the code in another email. Thanks, Peter

Here is my, considerably low-tech, code :

At init time,

----------- const std::string CatchOutput = "class StdoutCatcher:\n" "\tdef __init__(self):\n" "\t\tself.data = ''\n" "\tdef write(self, stuff):\n" "\t\tself.data = self.data + stuff\n" "\n" "import sys\n" "TheStdoutCatcher = StdoutCatcher()\n" "sys.stdout = TheStdoutCatcher\n";

Run (CatchOutput); // thin wrapper to run a snippet -----------

and then after some python code has run :

----------- using namespace boost::python; object Catcher (main_namespace ["TheStdoutCatcher"]); object CatcherData (borrowed (PyObject_GetAttrString (Catcher.ptr (), "data")));

const std::string &S = extract<std::string>(CatcherData); Output += S; // some log string Run ("sys.stdout.data=''\n"); -----------

Note I'm pretty new at this, so the only warranty is "the above didn't crash so far" :) Now that I paste it, I'm not sure about that const ref to the result of extract.

hth, bert

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