Exception in Tkinter callback

[AugustoCiuffoletti]

I've just installed the sketch and your package, using pip, in a virtualenv with python3 on ubuntu 16.04. I run the arduino IDE terminal on the port and data are flowing.

When I issue the exg -p /dev/ttyUSB0 command I have the following output:

(py3env) augusto@laplenovo:~/Documenti/Elettronica/Arduino/Olimex-ECG$ exg -p /dev/ttyUSB0
Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python3.5/tkinter/__init__.py", line 1553, in __call__
    return self.func(*args)
  File "/usr/lib/python3.5/tkinter/__init__.py", line 599, in callit
    func(*args)
  File "/home/augusto/Documenti/Elettronica/Arduino/Olimex-ECG/py3env/lib/python3.5/site-packages/matplotlib/backends/backend_tkagg.py", line 144, in _on_timer
    TimerBase._on_timer(self)
  File "/home/augusto/Documenti/Elettronica/Arduino/Olimex-ECG/py3env/lib/python3.5/site-packages/matplotlib/backend_bases.py", line 1311, in _on_timer
    ret = func(*args, **kwargs)
  File "/home/augusto/Documenti/Elettronica/Arduino/Olimex-ECG/py3env/lib/python3.5/site-packages/matplotlib/animation.py", line 1243, in _step
    self._init_draw()
  File "/home/augusto/Documenti/Elettronica/Arduino/Olimex-ECG/py3env/lib/python3.5/site-packages/matplotlib/animation.py", line 1490, in _init_draw
    self._draw_frame(next(self.new_frame_seq()))
  File "/home/augusto/Documenti/Elettronica/Arduino/Olimex-ECG/py3env/lib/python3.5/site-packages/matplotlib/animation.py", line 1512, in _draw_frame
    self._drawn_artists = self._func(framedata, *self._args)
  File "/home/augusto/Documenti/Elettronica/Arduino/Olimex-ECG/py3env/lib/python3.5/site-packages/olimex/gui.py", line 157, in <lambda>
    ani = animation.FuncAnimation(fig, lambda _: next(axes_updater_gen),
StopIteration

The graphic interface shows up but it's blank, and remains such.
Here is the trace of a re-installation (uninstall/install), so that you see the packages I use:

(py3env) augusto@laplenovo:~/Documenti/Elettronica/Arduino/Olimex-ECG$ pip install olimex-ekg-emg
Collecting olimex-ekg-emg
Requirement already satisfied: numpy>=1.9.1 in ./py3env/lib/python3.5/site-packages (from olimex-ekg-emg)
Requirement already satisfied: scipy>=0.15.1 in ./py3env/lib/python3.5/site-packages (from olimex-ekg-emg)
Requirement already satisfied: pyserial>=2.7 in ./py3env/lib/python3.5/site-packages (from olimex-ekg-emg)
Requirement already satisfied: matplotlib>=1.4.2 in ./py3env/lib/python3.5/site-packages (from olimex-ekg-emg)
Requirement already satisfied: pyparsing!=2.0.0,!=2.0.4,!=2.1.2,!=2.1.6,>=1.5.6 in ./py3env/lib/python3.5/site-packages (from matplotlib>=1.4.2->olimex-ekg-emg)
Requirement already satisfied: pytz in ./py3env/lib/python3.5/site-packages (from matplotlib>=1.4.2->olimex-ekg-emg)
Requirement already satisfied: python-dateutil in ./py3env/lib/python3.5/site-packages (from matplotlib>=1.4.2->olimex-ekg-emg)
Requirement already satisfied: cycler>=0.10 in ./py3env/lib/python3.5/site-packages (from matplotlib>=1.4.2->olimex-ekg-emg)
Requirement already satisfied: six>=1.10 in ./py3env/lib/python3.5/site-packages (from matplotlib>=1.4.2->olimex-ekg-emg)
Installing collected packages: olimex-ekg-emg
Successfully installed olimex-ekg-emg-0.1.10

Any help is welcome...

Thank you!

[logston]

Hi @AugustoCiuffoletti! Thanks for reaching out. These bug reports are very helpful. I'm not immediately sure what the issue is here. However, I'm not sure if it would be fruitful to debug now. I am working on an updated version of this library for use within the jupyter notebook. I will be displaying my work at PyCon 2017. Can you hold out another month while I finish that version?

Thanks.

[AugustoCiuffoletti]

Sure. Meanwhile,. if I find the time I'll study your code and see if I solve the problem by myself. In case I'll tell you. Congrats (and best wishes) for the PyCon participation. Augusto 2017-02-25 21:20 GMT+01:00 Paul <notifications@github.com>:

…

Hi @AugustoCiuffoletti <https://github.com/AugustoCiuffoletti>! Thanks for reaching out. These bug reports are very helpful. I'm not immediately sure what the issue is here. However, I'm not sure if it would be fruitful to debug now. I am working on an updated version of this library for use within the jupyter notebook. I will be displaying my work at PyCon 2017. Can you hold out another month while I finish that version? Thanks. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AYj_6zDlrq_A0mMWY_dJGOBtmqqa48Igks5rgI0QgaJpZM4MLEDD> .

-- Augusto Ciuffoletti Dipartimento di Informatica Università di Pisa 56100 - Pisa (Italy)

[logston]

Just released 0.2.0. Let me know if it works for you.

[AugustoCiuffoletti]

Meanwhile I developed my own, sorry: you can find it at https://github.com/AugustoCiuffoletti/Olimex-EKG_plotter 2017-04-26 4:07 GMT+02:00 Paul <notifications@github.com>:

…

Just released 0.2.0. Let me know if it works for you. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AYj_6ySkKFFHPuQDO-tVvWEapFzO-Efoks5rzqbGgaJpZM4MLEDD> .

-- Augusto Ciuffoletti Dipartimento di Informatica Università di Pisa 56100 - Pisa (Italy)

[logston]

Nice!