Update code for IoT_Environment_Sensor example

IoT_Environment_Sensor/aio.py

@@ -27,6 +27,8 @@ import adafruit_logging as logging
 import rtc
 
 logger = logging.getLogger('main')
+if not logger.hasHandlers():
+    logger.addHandler(logging.StreamHandler())
 
 TIME_SERVICE = "https://io.adafruit.com/api/v2/%s/integrations/time/strftime?x-aio-key=%s"
 # our strftime is %Y-%m-%d %H:%M:%S.%L %j %u %z %Z see http://strftime.net/ for decoding details

IoT_Environment_Sensor/air_quality.py

@@ -24,6 +24,8 @@ except ImportError:
     import ustruct as struct
 
 logger = logging.getLogger('main')
+if not logger.hasHandlers():
+    logger.addHandler(logging.StreamHandler())
 
 class AirQualitySensor (object):
 

IoT_Environment_Sensor/code.py

@@ -26,6 +26,8 @@ import aio
 import adafruit_logging as logging
 
 logger = logging.getLogger('main')
+if not logger.hasHandlers():
+    logger.addHandler(logging.StreamHandler())
 logger.setLevel(logging.INFO)
 
 gps_uart = busio.UART(board.TX, board.RX, baudrate=9600, timeout=3.000)

IoT_Environment_Sensor/gps.py

@@ -22,6 +22,8 @@ import adafruit_logging as logging
 
 
 logger = logging.getLogger('main')
+if not logger.hasHandlers():
+    logger.addHandler(logging.StreamHandler())
 
 class Gps(object):