"2016-06-18 12:31:03,255","INFO","response: R"
"2016-06-18 12:31:05,637","ERROR","Unhandled exception: Traceback (most recent call last):
File "/usr/local/anaconda/bin/behave", line 10, in <module>
execfile(__file__)
File "/local/home/bird/Code/pyoperant/scripts/behave", line 135, in <module>
main()
File "/local/home/bird/Code/pyoperant/scripts/behave", line 131, in main
behavior.run()
File "/local/home/bird/Code/pyoperant/pyoperant/behavior/base.py", line 153, in run
session=self._run_session)
File "/local/home/bird/Code/pyoperant/pyoperant/utils.py", line 103, in run_state_machine
state = state_functions[state]()
File "/local/home/bird/Code/pyoperant/pyoperant/behavior/base.py", line 215, in _run_session
post=self.session_post)
File "/local/home/bird/Code/pyoperant/pyoperant/utils.py", line 103, in run_state_machine
state = state_functions[state]()
File "/local/home/bird/Code/pyoperant/pyoperant/behavior/two_alt_choice.py", line 198, in session_main
run_trial_queue()
File "/local/home/bird/Code/pyoperant/pyoperant/behavior/two_alt_choice.py", line 164, in run_trial_queue
self.run_trial()
File "/local/home/bird/Code/py-behaviors/glab_behaviors/SameDifProbs2.py", line 265, in run_trial
self.consequence_main()
File "/local/home/bird/Code/py-behaviors/glab_behaviors/SameDifProbs2.py", line 391, in consequence_main
self.reward_main() # provide a reward
File "/local/home/bird/Code/pyoperant/pyoperant/behavior/two_alt_choice.py", line 520, in reward_main
reward_event = self.panel.reward(value=value)
File "/local/home/bird/Code/pyoperant/pyoperant/components.py", line 178, in reward
return self.feed(dur=value)
File "/local/home/bird/Code/pyoperant/pyoperant/components.py", line 170, in feed
feed_time = self.up()
File "/local/home/bird/Code/pyoperant/pyoperant/components.py", line 110, in up
time_up = self.IR.poll(timeout=self.max_lag)
File "/local/home/bird/Code/pyoperant/pyoperant/hwio.py", line 39, in poll
return self.interface._poll(timeout=timeout,**self.params)
File "/local/home/bird/Code/pyoperant/pyoperant/interfaces/comedi_.py", line 55, in _poll
status, output, error = poll_command.run(timeout=timeout)
File "/local/home/bird/Code/pyoperant/pyoperant/utils.py", line 176, in run
self.process.terminate()
AttributeError: 'NoneType' object has no attribute 'terminate'
"
Everything was running smoothly for several weeks until this: