Making big modules 'optional' for Docker

Author: hfitzp200_comcast

framework/core/__init__.py

@@ -32,13 +32,19 @@
 
 #__all__ = ["testControl", "logModule", "rcCodes", "rackController", "slotInfo" ]
 #expose only the components required for the upper classes to operate
-from . capture import capture
+try:
+  from . capture import capture
+except ImportError:
+  capture = None  # cv2/pytesseract/PIL not installed (e.g. Docker)
 from . commonRemote import commonRemoteClass
 from . deviceManager import deviceManager
 from . logModule import logModule
 from . logModule import DEBUG, INFO, WARNING, ERROR, CRITICAL
 from . testControl import testController
-from . webpageController import webpageController
+try:
+  from . webpageController import webpageController
+except ImportError:
+  webpageController = None  # selenium not installed (e.g. Docker)
 from . rcCodes import rcCode as rc
 from . utilities import utilities