Changed to double quotes

BiffoBear · BiffoBear · commit 26c867082024 · 2021-01-31T20:16:04.000+07:00
diff --git a/adafruit_rfm69.py b/adafruit_rfm69.py
@@ -477,7 +477,7 @@ def operation_mode(self, val):
         start = time.monotonic()
         while not self.mode_ready:
             if (time.monotonic() - start) >= 1:
-                raise RuntimeError('Operation mode failed to set.')
+                raise RuntimeError("Operation mode failed to set.")
 
     @property
     def sync_word(self):
