X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/63577fd6b79e868599a695eb44382f25aed64aeb..c8d79678f137a451e1d6f8f024aa0fa1eb7dd10b:/src/adafruit_blinka/microcontroller/bcm283x/pulseio/PulseIn.py

diff --git a/src/adafruit_blinka/microcontroller/bcm283x/pulseio/PulseIn.py b/src/adafruit_blinka/microcontroller/bcm283x/pulseio/PulseIn.py
index f16867b..aef942a 100644
--- a/src/adafruit_blinka/microcontroller/bcm283x/pulseio/PulseIn.py
+++ b/src/adafruit_blinka/microcontroller/bcm283x/pulseio/PulseIn.py
@@ -45,7 +45,9 @@ class PulseIn:
                 print("Message Queue Key: ", self._mq.key)
             queues.append(self._mq)
         except sysv_ipc.ExistentialError:
-            raise RuntimeError("Message queue creation failed")
+            raise RuntimeError(
+                "Message queue creation failed"
+            ) from sysv_ipc.ExistentialError
 
         dir_path = os.path.dirname(os.path.realpath(__file__))
         cmd = [
@@ -86,7 +88,7 @@ class PulseIn:
                 time.sleep(0.001)  # wait a bit then retry!
         # uh-oh timed out
         raise RuntimeError(
-            "Timed out waiting for PulseIn message. Be sure libgpiod is installed."
+            "Timed out waiting for PulseIn message. Make sure libgpiod is installed."
         )
 
     # pylint: enable=redefined-builtin