use dict.items() instead of dict.iteritems() for Python 3

from: https://wiki.python.org/moin/Python3.0 > Remove dict.iteritems(), dict.iterkeys(), and dict.itervalues(). > Instead: use dict.items(), dict.keys(), and dict.values() respectively. Signed-off-by: Drew Fustini <drew@pdp7.com>

Author: pdp7

test/test_led.py

@@ -34,7 +34,7 @@ def set_all_leds(self, state):
  "USR1": "mmc0", \
  "USR2": "cpu0", \
  "USR3": "mmc1" }
- for led, name in test_leds.iteritems():
+ for led, name in test_leds.items():
  self.set_brightness(state, led, name)
  GPIO.cleanup()