Matplotlib warning [error?] message

[Zahraa Fadhil]

On Sunday, February 18, 2024 at 10:48:29 PM UTC+3, Leif Svalgaard wrote:
> The latest[?] version of Matplotlib cannot show a figure. I get the 
> annoying error message: "Matplotlib is currently using agg, which is a 
> non-GUI backend, so cannot show the figure" 
> I'm using Spyder python 3.11 on Windows 11. 
> What to do? 
> 
> -- 
> Leif Svalgaard 
> 
I have the same problem
try this
1) add this line first 
%matplotlib inline
import matplotlib
import matplotlib.pyplot as plt

2) delete this line from your cod.....matplotlib.use('Agg')

3) save the result into png file 
plt.savefig('D:\data\mygraph.png')


another solution 
https://www.w3schools.com/python/trypandas.asp?filename=demo_ml_dtree4

import sys
import matplotlib
matplotlib.use('Agg')
....
import matplotlib.pyplot as plt
....
#Two  lines to make compiler able to draw:
plt.savefig(sys.stdout.buffer)
sys.stdout.flush()