Fix more exception slicing.
diff --git a/Lib/plat-mac/terminalcommand.py b/Lib/plat-mac/terminalcommand.py
index a2f008c..da1c28a 100644
--- a/Lib/plat-mac/terminalcommand.py
+++ b/Lib/plat-mac/terminalcommand.py
@@ -36,7 +36,7 @@
     try:
         theEvent.AESend(SEND_MODE, kAENormalPriority, kAEDefaultTimeout)
     except AE.Error as why:
-        if why[0] != -600:  # Terminal.app not yet running
+        if why.args[0] != -600:  # Terminal.app not yet running
             raise
         os.system(START_TERMINAL)
         time.sleep(1)