fixes #0001422: Subclass Exception

inherit Base.FreeCADError form RuntimeError
inherit Part.OCCError from Base.FreeCADError
inherit OCCDomainError from Part.OCCError
inherit OCCRangeError from Part.OCCError
inherit OCCConstructionError from OCCDomainError
inherit OCCDimensionError from OCCDomainError
Added PY_CATCH_OCC macro
replace PyExc_Exception
use FreeCADError in makeWireString
catch exception in BSplineCurve.increasedegree

src/Mod/Import/Gui/AppImportGuiPy.cpp

@@ -133,7 +133,7 @@ static PyObject * importer(PyObject *self, PyObject *args)
                 aReader.SetLayerMode(true);
                 QString fn = QString::fromUtf8(Name);
                 if (aReader.ReadFile((const char*)fn.toLocal8Bit()) != IFSelect_RetDone) {
-                    PyErr_SetString(PyExc_Exception, "cannot read STEP file");
+                    PyErr_SetString(Base::BaseExceptionFreeCADError, "cannot read STEP file");
                     return 0;
                 }
 
@@ -163,7 +163,7 @@ static PyObject * importer(PyObject *self, PyObject *args)
                 aReader.SetLayerMode(true);
                 QString fn = QString::fromUtf8(Name);
                 if (aReader.ReadFile((const char*)fn.toLocal8Bit()) != IFSelect_RetDone) {
-                    PyErr_SetString(PyExc_Exception, "cannot read IGES file");
+                    PyErr_SetString(Base::BaseExceptionFreeCADError, "cannot read IGES file");
                     return 0;
                 }
 
@@ -184,7 +184,7 @@ static PyObject * importer(PyObject *self, PyObject *args)
             }
         }
         else {
-            PyErr_SetString(PyExc_Exception, "no supported file format");
+            PyErr_SetString(Base::BaseExceptionFreeCADError, "no supported file format");
             return 0;
         }
 
@@ -194,7 +194,7 @@ static PyObject * importer(PyObject *self, PyObject *args)
     }
     catch (Standard_Failure) {
         Handle_Standard_Failure e = Standard_Failure::Caught();
-        PyErr_SetString(PyExc_Exception, e->GetMessageString());
+        PyErr_SetString(Base::BaseExceptionFreeCADError, e->GetMessageString());
         return 0;
     }
     PY_CATCH
@@ -280,7 +280,7 @@ static PyObject * exporter(PyObject *self, PyObject *args)
     }
     catch (Standard_Failure) {
         Handle_Standard_Failure e = Standard_Failure::Caught();
-        PyErr_SetString(PyExc_Exception, e->GetMessageString());
+        PyErr_SetString(Base::BaseExceptionFreeCADError, e->GetMessageString());
         return 0;
     }
     PY_CATCH
@@ -486,7 +486,7 @@ static PyObject * ocaf(PyObject *self, PyObject *args)
             aReader.SetNameMode(true);
             aReader.SetLayerMode(true);
             if (aReader.ReadFile((Standard_CString)Name) != IFSelect_RetDone) {
-                PyErr_SetString(PyExc_Exception, "cannot read STEP file");
+                PyErr_SetString(Base::BaseExceptionFreeCADError, "cannot read STEP file");
                 return 0;
             }
 
@@ -505,7 +505,7 @@ static PyObject * ocaf(PyObject *self, PyObject *args)
             aReader.SetNameMode(true);
             aReader.SetLayerMode(true);
             if (aReader.ReadFile((Standard_CString)Name) != IFSelect_RetDone) {
-                PyErr_SetString(PyExc_Exception, "cannot read IGES file");
+                PyErr_SetString(Base::BaseExceptionFreeCADError, "cannot read IGES file");
                 return 0;
             }
 
@@ -517,7 +517,7 @@ static PyObject * ocaf(PyObject *self, PyObject *args)
             pi->EndScope();
         }
         else {
-            PyErr_SetString(PyExc_Exception, "no supported file format");
+            PyErr_SetString(Base::BaseExceptionFreeCADError, "no supported file format");
             return 0;
         }
 
@@ -548,7 +548,7 @@ static PyObject * ocaf(PyObject *self, PyObject *args)
     }
     catch (Standard_Failure) {
         Handle_Standard_Failure e = Standard_Failure::Caught();
-        PyErr_SetString(PyExc_Exception, e->GetMessageString());
+        PyErr_SetString(Base::BaseExceptionFreeCADError, e->GetMessageString());
         return 0;
     }
     PY_CATCH