throw a specific exception for serial port errors

1 files changed, 3 insertions, 6 deletions

diff --git a/dexcom_reader/dexcom_dumper.py b/dexcom_reader/dexcom_dumper.py
index 0a2d8ee..18724ac 100755
--- a/dexcom_reader/dexcom_dumper.py
+++ b/dexcom_reader/dexcom_dumper.py
@@ -166,12 +166,9 @@ def poll():
                 try:
                         poll_remote() if HOST else poll_stdout()
 
-                except ValueError as v:
-                        if (v.args[0] == 'Attempting to use a port that is not open'):
-                                connected(False)
-                                dexcom_reconnect()
-                        else:
-                                print_verbose('Caught error: %s' % v.args[0])
+                except constants.SerialPortError:
+                        connected(False)
+                        dexcom_reconnect()
                         sleep_verbose(10)
                 except KeyboardInterrupt:
                         print_verbose('Exiting.')