Tidy up print formatting in example and added TODO for bug in main code with regards saturation detection

Author: IainColledge

Adafruit_TSL2561/Adafruit_TSL2561.py

@@ -436,6 +436,7 @@ def calculate_lux(self):
         else:
             clip_threshold = self.TSL2561_CLIPPING_402MS
 
+        # TODO: Fix that exception not raised when hits saturation but returns a Lux of around 780
         if (self._broadband > clip_threshold) or (self._ir > clip_threshold):
             raise OverflowError('TSL2561 Sensor Saturated')
 
@@ -568,6 +569,6 @@ def calculate_avg_lux(self, testavg=TSL2561_NO_OF_AVG_SAMPLES):
                 except KeyboardInterrupt:
                     quit()
         else:
-            print("Invalid arg(s):", sys.argv)
+            print("Invalid arg(s):", sys.argv[1])
     except IndexError:
         print(int(LightSensor.calculate_avg_lux()))

Adafruit_TSL2561/Adafruit_TSL2561_example.py

@@ -16,4 +16,4 @@
 except OverflowError as e:
     print(e)
 else:
-    print('Lux value is %d', lux)
+    print("Lux value is ", lux)