Failing to properly reproduce Stata Blog's examples with Matplotlib

[Alexis Penot]

Hello everyone,

I am trying to reproduce the code given on https://blog.stata.com/2020/09/14/st...l-predictions/
I was desperate not to find a way to use the interactive backend and eventually chose to use matplotlib.use('agg') instruction to get a graph at the end. But still, I have another problem. The following code

python:
import pandas as pd
data = pd.read_stata("predictions.dta")
import numpy as np
mylist = np.arange(20,90,step=10)
import matplotlib
matplotlib.use('agg')
import matplotlib.pyplot as plt
data = pd.read_stata("predictions.dta")
ax = plt.axes(projection='3d')
plt.savefig("essai.png")
end

stops at the ax creation line withe error :

Traceback (most recent call last):
File "/Users/alexispe/opt/anaconda3/lib/python3.7/site-packages/matplotlib/projections/__init__.py", line 58, in g
> et_projection_class
return projection_registry.get_projection_class(projectio n)
File "/Users/alexispe/opt/anaconda3/lib/python3.7/site-packages/matplotlib/projections/__init__.py", line 25, in g
> et_projection_class
return self._all_projection_types[name]
KeyError: '3d'

Is there any clue to help me? I use Stata 16 with Mac OS X and an Anaconda Python setup (I have other Python versions installed if needed).
At first, I thought that Python integration within Stata could an open window on a different (and perhaps better?) world that could threaten Stata but now I start to realise how smart the move is: it makes Stata users understand how easy, convenient and readable Stata language is!

[Bjarte Aagnes]

What is returned from running:

python q
python : import matplotlib; print(matplotlib.__version__)

(the example code does not fail using python37 matplotlib 3.3.2 on updated Stata 16 on Windows)

[Alexis Penot]

Thank you for your help. I realised from your message that my packages were not up to date. So I tried to update them from anaconda. Some weird messages appeared sometimes but at the end it seems to work since I was able to run the python code from Anaconda's Jupyter Notebook. And then came the catastrophe because now, whenever I tried to run a mere import matplotlib in Stata, Stata quit !
So I uninstalled Anaconda and tried Python with IDLE. At that point I am not able to use Matplotlib in this environnement so this not a Stata problem anymore. And I have to fix this (what a mess !) before being able to try and find an answer to my initial question......

[Bjarte Aagnes]

outside my OS, but the following seems relevant: you may try matplotlib.use('TKAgg') or "conda install python.app and launch your script with pythonw instead of python". And you can ask https://www.stata.com/support/tech-support/contact/