Merge pull request #62 from chi-lambda/safe-import-on-non-pi-systems

Made imports of GPIO fail less disruptively on non-Pi systems.

Author: joukos

drivers/driver_it8951.py

@@ -8,6 +8,8 @@
     import RPi.GPIO as GPIO
 except ImportError:
     pass
+except RuntimeError as e:
+    print(str(e))
 
 class IT8951(DisplayDriver):
     """A generic driver for displays that use a IT8951 controller board.

drivers/drivers_4in2.py

@@ -23,6 +23,8 @@
     import RPi.GPIO as GPIO
 except ImportError:
     pass
+except RuntimeError as e:
+    print(str(e))
 
 # The driver works as follows:
 #

drivers/drivers_base.py

@@ -26,6 +26,8 @@
     import RPi.GPIO as GPIO
 except ImportError:
     pass
+except RuntimeError as e:
+    print(str(e))
 
 
 class DisplayDriver(ABC):