Define raw_input() in Python 3 (#473)

Many thanks

hardware/LEDborg/nrgpio.py

@@ -4,6 +4,11 @@
 import RPi.GPIO as GPIO
 import sys
 
+try:
+    raw_input          # Python 2
+except NameError:
+    raw_input = input  # Python 3
+
 bounce = 20     # bounce time in mS to apply
 
 if len(sys.argv) > 1:

hardware/PiLcd/nrlcd.py

@@ -11,7 +11,13 @@
 import RPi.GPIO as GPIO
 import time
 import sys
-import os, select
+import os
+import select
+
+try:
+    raw_input          # Python 2
+except NameError:
+    raw_input = input  # Python 3
 
 # Turn off warnings if you run it a second time...
 GPIO.setwarnings(False)

hardware/PiLiter/nrgpio.py

@@ -4,6 +4,11 @@
 import RPi.GPIO as GPIO
 import sys
 
+try:
+    raw_input          # Python 2
+except NameError:
+    raw_input = input  # Python 3
+
 bounce = 20     # bounce time in mS to apply
 
 if len(sys.argv) > 1:

hardware/Pibrella/nrgpio.py

@@ -8,6 +8,11 @@ import os
 import subprocess
 from time import sleep
 
+try:
+    raw_input          # Python 2
+except NameError:
+    raw_input = input  # Python 3
+
 bounce = 25;
 
 if len(sys.argv) > 2:
@@ -177,7 +182,7 @@ if len(sys.argv) > 2:
     elif cmd == "kbd":  # catch keyboard button events
         try:
             while not os.path.isdir("/dev/input/by-path"):
-                time.sleep(10)
+                sleep(10)
             infile = subprocess.check_output("ls /dev/input/by-path/ | grep -m 1 'kbd'", shell=True).strip()
             infile_path = "/dev/input/by-path/" + infile
             EVENT_SIZE = struct.calcsize('llHHI')

hardware/neopixel/neopix.py

@@ -9,6 +9,11 @@ except ImportError:
     from neopixel import Adafruit_NeoPixel as PixelStrip, Color
     __version__ = "legacy"
 
+try:
+    raw_input          # Python 2
+except NameError:
+    raw_input = input  # Python 3
+
 # LED strip configuration:
 LED_COUNT      = 8      # Number of LED pixels.
 LED_PIN        = 18      # GPIO pin connected to the pixels (must support PWM!).

hardware/sensehat/sensehat.py

@@ -30,6 +30,12 @@ import threading
 
 from sense_hat import SenseHat
 
+try:
+    StandardError              # Python 2
+except NameError:
+    StandardError = Exception  # Python 3
+
+
 EVENT_FORMAT = 'llHHI'
 EVENT_SIZE = struct.calcsize(EVENT_FORMAT)
 EVENT_NAMES = {103:'U',105:'L',106:'R',108:'D',28:'E'}

hardware/unicorn/unihat.py

@@ -1,6 +1,7 @@
 #!/usr/bin/python
 
 # Import library functions we need
+from __future__ import print_function
 import sys
 import os
 import unicornhat as UH
@@ -64,4 +65,4 @@ while True:
     except (EOFError, SystemExit):  # hopefully always caused by us sigint'ing the program
         sys.exit(0)
     except Exception as ex:
-        print "bad data: "+data
+        print("bad data: "+data)