uncacsci@uncacsci-pi3-a:~$ sudo apt-get install -y python3 python3-pip python-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python-dev is already the newest version.
python3 is already the newest version.
python3-pip is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
uncacsci@uncacsci-pi3-a:~$ sudo apt-get install python3-gpiozero
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-gpiozero is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
uncacsci@uncacsci-pi3-a:~$ id
uid=1001(uncacsci) gid=4(adm) groups=4(adm),101(input),997(gpio),998(i2c)
uncacsci@uncacsci-pi3-a:~$ python3
Python 3.4.2 (default, Oct 19 2014, 13:31:11) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from gpiozero import Button
>>> 
uncacsci@uncacsci-pi3-a:~$ python3
Python 3.4.2 (default, Oct 19 2014, 13:31:11) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from RPi import GPIO
>>> GPIO.setmode(GPIO.BCM)
>>> GPIO.setup(9, GPIO.IN, GPIO.PUD_UP)
>>> GPIO.input(9)
1
>>> GPIO.input(9)
1
>>> GPIO.input(9)
0
>>> GPIO.setup(11, GPIO.OUT)
>>> GPIO.output(11, GPIO.HIGH)
>>> GPIO.output(11, GPIO.LOW)
>>> exit
Use exit() or Ctrl-D (i.e. EOF) to exit
>>> exit()
uncacsci@uncacsci-pi3-a:~$ cat ledon
#! /usr/bin/python3
ledpin=11
from RPi import GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(11, GPIO.OUT)
GPIO.output(11, GPIO.HIGH)

uncacsci@uncacsci-pi3-a:~$ cat ledoff
#! /usr/bin/python3
ledpin=11
from RPi import GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(11, GPIO.OUT)
GPIO.output(11, GPIO.LOW)

uncacsci@uncacsci-pi3-a:~$ chmod a+x ledon
uncacsci@uncacsci-pi3-a:~$ chmod a+x ledoff
uncacsci@uncacsci-pi3-a:~$ ./ledon
uncacsci@uncacsci-pi3-a:~$ ledoff
bash: ledoff: command not found
uncacsci@uncacsci-pi3-a:~$ ./ledoff
uncacsci@uncacsci-pi3-a:~$ cat readbutton
#! /usr/bin/python3
buttonpin=11
from RPi import GPIO
import json
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(9, GPIO.IN, GPIO.PUD_UP)
if GPIO.input(9)==0:
    state = 'on'
else:
    state = 'off'
print(json.dumps({'state':state}))

uncacsci@uncacsci-pi3-a:~$ exit
exit

Process shell finished
uncacsci@uncacsci-pi3-a:~$ i2cdetech -y 1
bash: i2cdetech: command not found
uncacsci@uncacsci-pi3-a:~$ i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- 39 -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --                         
uncacsci@uncacsci-pi3-a:~$ exit
exit

Process shell finished