Matplotlib plot no output jupyter-lab

Question

I know I am beating a dead horse here, but I simply can't get the matplotlib plot to display in a Jupyterlab notebook.

I am trying to run a python script that eventually plots inside a jupyter cell.

Things I have tried:

The best success that I had was with the %run magic command: %run pythonscript.py. This then threw an error, but still was able to display a plot after it:

   /opt/conda/lib/python3.9/site-packages/IPython/core/pylabtools.py in
   mpl_execfile(fname, *where, **kw)
       187         matplotlib.interactive(is_interactive)
       188         # make rendering call now, if the user tried to do it
   --> 189         if plt.draw_if_interactive.called:
       190             plt.draw()
       191             plt.draw_if_interactive.called = False
   
   AttributeError: 'function' object has no attribute 'called'

However this was short-lived as it then just showed the error with no plot after a kernel restart.

%matplotlib inline !python/!python3 pythonscript.py No error. Nothing not even the `[[Figure 2D....]]
%matplotlib notebook !python/!python3 pythonscript.py No error. Nothing not even the `[[Figure 2D....]]
Without the %matplotlib magic command. No error. Nothing not even the `[[Figure 2D....]]
%run pythonscript.py. We get the AttributeError as shown above.
%pylab inline yields nothing if coupled with !python pythonscript.py and yields the AttributeError if with %run.
%matplotlib inline %run pythonscript.py. We get the AttributeError as shown above.

Trying to learn more about the attribute error when running the magic command yielded deadends.

pip list:

ipympl                        0.7.0
ipython                       7.27.0
jupyterlab                    3.1.10
ipykernel                     6.4.1
ipywidgets                    7.6.4
jupyterlab-widgets            1.0.1
matplotlib                    3.2.2
prompt-toolkit                3.0.20

At this point, I think I have exhausted most resources. Any advice would be appreciated.

Edit: Request screenshots and code explanation:

The code is based off of BackTrader, a backtesting library. The line of code that does the plotting is cerebro.plot(). Docs: https://www.backtrader.com/docu/plotting/plotting/

Would be great if you could include screenshots and the code — The Singularity, Sep 22 '21 at 05:16
Would you mind sharing the code or the `.ipynb` so I can try? — The Singularity, Sep 22 '21 at 05:42
As I was creating the gist to share with you, I stumbled across 2 lines at the top of `pythonscript.py`: `import matplotlib matplotlib.use("agg")`. Huge face palm and I feel extremely silly after removing those 2 lines. Plot was finally able to display after `%matplotlib inline %run pythonscript.py`. Even kernel restarted to double check. You inadvertently gave me the solution lol. Thank you! — LeggoMaEggo, Sep 22 '21 at 05:59

Matplotlib plot no output jupyter-lab

0 Answers0