/products/raspberry-pi/raspberrypi_projects/b/blog/posts/step-by-step-build-trick-or-trivia-halloween-candy-dispenser-3--vnc-problem-of-tkinter-rpi-gpio-not-working-simultaneouslyFollowing my previous blog Step by Step Build Trick or Trivia Halloween Candy Dispenser #2 , I will start with the Python GUI in this blog. I got the LCD display work and I can SSH to my Pi 2 in the last two blogs, so I decided to try out Python ...en-USTelligent Community 12https://community.element14.com/products/raspberry-pi/raspberrypi_projects/b/blog/posts/step-by-step-build-trick-or-trivia-halloween-candy-dispenser-3--vnc-problem-of-tkinter-rpi-gpio-not-working-simultaneouslyTue, 03 Nov 2015 18:22:11 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1120ab47-d103-4ae4-b633-a918ddcd8641CharlesGantt1<p>Correct, you can not remotely start a TKinter session. You must do it from the device that is executing the code and from within a GUI. Are you running Python 2? I tested the code in PyCharm and on another pi connected to a display and running the GUI and it worked just fine in both instances. </p><img src="https://community.element14.com/aggbug?PostID=669&AppID=84&AppType=Weblog&ContentType=0" width="1" height="1">