fix: fix syntax error in scxml actions and update diagram doctest

- Parenthesize multiple exception types in except clause (Python 3 syntax)
- Update diagram doctest to match new compound graph output

Author: fgmacedo

statemachine/contrib/diagram.py

@@ -235,9 +235,10 @@ def quickchart_write_svg(sm: StateChart, path: str):
     >>> sm = OrderControl()
     >>> print(sm._graph().to_string())
     digraph OrderControl {
-    label=OrderControl;
+    compound=true;
     fontname=Arial;
     fontsize="10pt";
+    label=OrderControl;
     rankdir=LR;
     ...
 

statemachine/io/scxml/actions.py

@@ -362,7 +362,7 @@ def create_send_action_callable(action: SendAction) -> Callable:
     if action.content:
         try:
             content = (eval(action.content, {}, {}),)
-        except NameError, IndentationError, SyntaxError, TypeError:
+        except (NameError, IndentationError, SyntaxError, TypeError):
             content = (action.content,)
 
     def send_action(*args, **kwargs):