From 7a848e26fc51639fc0b2395d50e8d473471b27e9 Mon Sep 17 00:00:00 2001
From: Kevin Matz <kevin.matz@gmail.com>
Date: Mon, 5 Aug 2019 16:37:15 -0400
Subject: [PATCH] exception handling on serial write without a port

---
 firmware/robot.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/firmware/robot.py b/firmware/robot.py
index 48f8741..e723e08 100644
--- a/firmware/robot.py
+++ b/firmware/robot.py
@@ -42,8 +42,12 @@ class Robot:
         str = str.lower().encode()
         try:
             self.serial_port.write(str)
-        except serial.serialutil.SerialTimeoutException:
-            pass
+        except AttributeError:
+            logger.error("ERROR: serial port not writeable.")
+        except serial.SerialException as e:
+            logger.error(e)
+        except serial.SerialTimeoutException as e:
+            logger.debug(e)
 
     def isMoving(self):
         return self.angle != self.target
@@ -94,5 +98,5 @@ class Robot:
         except NameError:
             logger.error("ERROR: configuration hasn't been set!")
             raise
-        except serial.serialutil.SerialException:
+        except serial.SerialException:
             logger.error("ERROR: Unable to start serial port.")