fix py.Println()

Author: glaukiol1

os/os.module.go

@@ -192,8 +192,8 @@ func system(self py.Object, args py.Tuple) (py.Object, error) {
 	if err != nil {
 		return nil, py.ExceptionNewf(py.OSError, err.Error())
 	}
-	code, err := py.Println(self, string(outb))
-	if code != 0 || err != nil {
+	ok = py.Println(self, string(outb))
+	if !ok {
 		return py.Int(1), nil
 	}
 

py/util.go

@@ -207,33 +207,33 @@ func loadValue(src Object, data interface{}) error {
 }
 
 // Println prints the provided strings to gpython's stdout.
-func Println(self Object, args ...string) error {
+func Println(self Object, args ...string) bool {
 	sysModule, err := self.(*Module).Context.GetModule("sys")
 	if err != nil {
-		return err
+		return false
 	}
 	stdout := sysModule.Globals["stdout"]
 	write, err := GetAttrString(stdout, "write")
 	if err != nil {
-		return err
+		return false
 	}
 	call, ok := write.(I__call__)
 	if !ok {
-		return AssertionError
+		return false
 	}
 	for _, v := range args {
 		if !strings.Contains(v, "\n") {
 			v += " "
 		}
-		_, err := call(Tuple{String(v)}, nil)
+		_, err := call.M__call__(Tuple{String(v)}, nil)
 		if err != nil {
-			return err
+			return false
 		}
 
 	}
-	_, err = Call(write, Tuple{String("\n")}, nil) // newline
+	_, err = call.M__call__(Tuple{String("\n")}, nil) // newline
 	if err != nil {
-		return 1, err
+		return false
 	}
-	return 0, nil
+	return true
 }