updating to use try/except

adafruit_ahtx0.py

@@ -107,7 +107,7 @@ def reset(self) -> None:
 
     def calibrate(self) -> bool:
         """Ask the sensor to self-calibrate. Returns True on success, False otherwise"""
-        """Newer AHT20's may not succeed, so wrapping in try/except"""
+        # Newer AHT20's may not succeed, so wrapping in try/except
         try:
             self._buf[0] = AHTX0_CMD_CALIBRATE
             self._buf[1] = 0x08
@@ -118,9 +118,9 @@ def calibrate(self) -> bool:
                 time.sleep(0.01)
             if not self.status & AHTX0_STATUS_CALIBRATED:
                 return False
-            return True
-        except:
+        except Exception:  # pylint: disable=broad-except
             pass
+        return True
 
     @property
     def status(self) -> int: