diff --git a/bind/package.go b/bind/package.go
index e03a480..6edb4dd 100644
--- a/bind/package.go
+++ b/bind/package.go
@@ -7,6 +7,7 @@ package bind
 import (
 	"fmt"
 	"go/doc"
+	"os"
 	"strings"
 
 	"golang.org/x/tools/go/types"
@@ -237,11 +238,15 @@ func (p *Package) process() error {
 
 func (p *Package) addConst(obj *types.Const) {
 	//TODO(sbinet)
+	fmt.Fprintf(os.Stderr, "no yet supported: %v (%T)\n", obj, obj)
+	return
 	panic(fmt.Errorf("not yet supported: %v (%T)", obj, obj))
 }
 
 func (p *Package) addVar(obj *types.Var) {
 	//TODO(sbinet)
+	fmt.Fprintf(os.Stderr, "no yet supported: %v (%T)\n", obj, obj)
+	return
 	panic(fmt.Errorf("not yet supported: %v (%T)", obj, obj))
 }
 
diff --git a/bind/vars.go b/bind/vars.go
index 147c456..f77e078 100644
--- a/bind/vars.go
+++ b/bind/vars.go
@@ -76,6 +76,21 @@ func getTypedesc(t types.Type) typedesc {
 	case *types.Pointer:
 		elem := typ.Elem()
 		return getTypedesc(elem)
+
+	case *types.Signature:
+		return typedesc{
+			ctype:   "GoFunction",
+			cgotype: "GoFunction",
+			pyfmt:   "?",
+		}
+
+	case *types.Slice:
+		return typedesc{
+			ctype:   "GoSlice",
+			cgotype: "GoSlice",
+			pyfmt:   "?",
+		}
+
 	default:
 		panic(fmt.Errorf("unhandled type: %#v\n", typ))
 	}