display error messages if calling __init__ or _del caused an exception

updated docs
compiler flag to exclude DSP objects
pyext: fix for missing __init__ attribute
some ASSERTs for explicitly created pyext classes (should be runtime checks i guess)
let _inlets and _outlets default to 0

svn path=/trunk/; revision=3829

3 files changed, 47 insertions, 40 deletions

diff --git a/externals/grill/py/py.vcproj b/externals/grill/py/py.vcproj
index d82a132f..5ad7f1bf 100644
--- a/externals/grill/py/py.vcproj
+++ b/externals/grill/py/py.vcproj
@@ -85,7 +85,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="c:\programme\audio\pd-0.39-0\src;..\flext\source;c:\programme\prog\Python24\include"
+				AdditionalIncludeDirectories="c:\programme\audio\pd-0.39-1\src;..\flext\source;c:\programme\prog\Python24\include"
 				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;PY_EXPORTS;FLEXT_SYS=2;FLEXT_THREADS;PY_NUMARRAY"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="1"
@@ -105,7 +105,7 @@
 				OutputFile="$(outdir)/py.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
-				AdditionalLibraryDirectories="&quot;C:\data\prog\packs\Python-2.4\PCbuild&quot;;&quot;c:/data/pd/pd-cvs/bin&quot;"
+				AdditionalLibraryDirectories="&quot;C:\data\prog\packs\Python-2.4\PCbuild&quot;;&quot;c:/programme/audio/pd-0.39-1/bin&quot;"
 				GenerateDebugInformation="TRUE"
 				ProgramDatabaseFile="$(outdir)/py.pdb"
 				SubSystem="2"
diff --git a/externals/grill/py/readme.txt b/externals/grill/py/readme.txt
index dcd10461..805b1d35 100644
--- a/externals/grill/py/readme.txt
+++ b/externals/grill/py/readme.txt
@@ -9,6 +9,45 @@ Visit https://www.paypal.com/xclick/business=gr%40grrrr.org&item_name=pyext&no_n
 
 ----------------------------------------------------------------------------
 
+You need to have Python installed on your system for the py/pyext external to work.
+For Windows pick an up-to-date package from http://www.python.org .
+For linux use the package manager. 
+For OS X keep things as the are - it has Python installed by default.
+
+
+The py/pyext package should run with Python version >= 2.1.
+It has been thoroughly tested with versions 2.2 to 2.4
+
+----------------------------------------------------------------------------
+
+Goals/features of the package:
+
+Access the flexibility of the python language in PD and MaxMSP
+
+
+PD - Load it as i library with e.g. "pd -lib py -path scripts"
+
+
+
+Check out the sample patches and scripts
+
+
+Description:
+
+With the py object you can load python modules and execute the functions therein.
+With the pyext you can use python classes to represent full-featured pd/Max message objects.
+Multithreading (detached methods) is supported for both objects.
+You can send messages to named objects or receive (with pyext) with Python methods.
+
+
+Known bugs:
+- The TCL/TK help patch is not usable under OSX.
+- With standard PD 0.37, threaded py scripts will cause "Stack overflows" under some circumstances
+  -> use PD 0.38 or the devel_0_37 cvs branch instead
+- It has been reported that pyext crashes on AMD64 with SSE enabled (for these CPUs, disable the respective compiler flags)
+
+----------------------------------------------------------------------------
+
 BUILDING from source
 --------------------
 
@@ -51,39 +90,6 @@ to avoid a compile-time type definition clash.
 
 ----------------------------------------------------------------------------
 
-Goals/features of the package:
-
-Access the flexibility of the python language in PD and MaxMSP
-
-
-PD - Load it as i library with e.g. "pd -lib py -path scripts"
-
-
-
-Check out the sample patches and scripts
-
-
-Description:
-
-With the py object you can load python modules and execute the functions therein.
-With the pyext you can use python classes to represent full-featured pd/Max message objects.
-Multithreading (detached methods) is supported for both objects.
-You can send messages to named objects or receive (with pyext) with Python methods.
-
-
-Known bugs:
-- The TCL/TK help patch is not usable under OSX.
-- With standard PD 0.37, threaded py scripts will cause "Stack overflows" under some circumstances
-  -> use PD 0.38 or the devel_0_37 cvs branch instead
-- It has been reported that pyext crashes on AMD64 with SSE enabled (for these CPUs, disable the respective compiler flags)
-
-----------------------------------------------------------------------------
-
-The py/pyext package should run with Python version >= 2.1.
-It has been thoroughly tested with versions 2.2 to 2.4
-
-----------------------------------------------------------------------------
-
 Version history:
 
 0.2.1:
diff --git a/externals/grill/py/source/pyext.cpp b/externals/grill/py/source/pyext.cpp
index 91be31e0..b3cafb8a 100644
--- a/externals/grill/py/source/pyext.cpp
+++ b/externals/grill/py/source/pyext.cpp
@@ -251,9 +251,12 @@ bool pyext::DoInit()
         if(init) {
             if(PyMethod_Check(init)) {
 			    PyObject *res = PyObject_CallObject(init,pargs);
-                if(!res)
+                if(!res) {
                     // exception is set
 				    ok = false;
+                    // we want to know why __init__ failed...
+                    PyErr_Print();
+                }
 			    else
 				    Py_DECREF(res);
             }
@@ -281,10 +284,8 @@ void pyext::DoExit()
             PyObject *ret = PyObject_CallObject(objdel,NULL);
             if(ret)
                 Py_DECREF(ret);
-#ifdef FLEXT_DEBUG
-            else 
-                post("%s - Could not call _del method",thisName());
-#endif
+            else
+                PyErr_Print();
             Py_DECREF(objdel);
         }
         else