Fix Gradio Blocks context issue and matplotlib backend

README.md

@@ -3,8 +3,8 @@ title: Jumeaux Numériques Complets
 emoji: 🔄
 colorFrom: blue
 colorTo: green
-sdk: streamlit
-sdk_version: 1.28.0
+sdk: gradio
+sdk_version: "4.44.1"
 app_file: app.py
 pinned: false
 ---

app.py

@@ -1,5 +1,7 @@
 import gradio as gr
 import numpy as np
+import matplotlib
+matplotlib.use('Agg')
 import matplotlib.pyplot as plt
 
 def create_introduction_plot(fidelity, noise, gain):
@@ -162,9 +164,9 @@ with gr.Blocks(title="Jumeaux Numériques") as demo:
                 gain = gr.Slider(0.1, 2.0, 1.0, label="Gain de contrôle")
             plot_intro = gr.Plot()
 
-            fidelity.change(lambda f, n, g: create_introduction_plot(f, n, g), [fidelity, noise, gain], plot_intro)
-            noise.change(lambda f, n, g: create_introduction_plot(f, n, g), [fidelity, noise, gain], plot_intro)
-            gain.change(lambda f, n, g: create_introduction_plot(f, n, g), [fidelity, noise, gain], plot_intro)
+            fidelity.change(create_introduction_plot, [fidelity, noise, gain], plot_intro)
+            noise.change(create_introduction_plot, [fidelity, noise, gain], plot_intro)
+            gain.change(create_introduction_plot, [fidelity, noise, gain], plot_intro)
             plot_intro.value = create_introduction_plot(0.7, 0.1, 1.0)
 
         # Kalman Filter
@@ -177,7 +179,6 @@ with gr.Blocks(title="Jumeaux Numériques") as demo:
                 r_param = gr.Slider(1e-6, 0.1, 0.05, label="Bruit mesure R")
             plot_kalman = gr.Plot()
             run_kalman = gr.Button("🚀 Lancer simulation")
-            run_kalman.click(create_kalman_plot, [a_param, dt_param, q_param, r_param], plot_kalman)
 
         # PID Control
         with gr.Tab("🎯 Contrôle PID"):
@@ -190,7 +191,6 @@ with gr.Blocks(title="Jumeaux Numériques") as demo:
                 ref = gr.Slider(-5.0, 5.0, 1.0, label="Consigne")
             plot_pid = gr.Plot()
             run_pid = gr.Button("🎯 Lancer contrôle PID")
-            run_pid.click(create_pid_plot, [system_type, Kp, Ki, Kd, ref], plot_pid)
 
         # Exercises
         with gr.Tab("📊 Exercices"):
@@ -205,6 +205,10 @@ with gr.Blocks(title="Jumeaux Numériques") as demo:
                 param2 = gr.Slider(0.01, 1.0, 0.1, label="Paramètre 2")
             exercise_plot = gr.Plot()
             run_exercise = gr.Button("📚 Résoudre l'exercice")
-            run_exercise.click(create_exercise_plot, [exercise_choice, param1, param2], exercise_plot)
+
+    # Event handlers
+    run_kalman.click(create_kalman_plot, [a_param, dt_param, q_param, r_param], plot_kalman)
+    run_pid.click(create_pid_plot, [system_type, Kp, Ki, Kd, ref], plot_pid)
+    run_exercise.click(create_exercise_plot, [exercise_choice, param1, param2], exercise_plot)
 
 demo.launch()

src/exercises/__init__.py

@@ -1,5 +1,7 @@
 import streamlit as st
 import numpy as np
+import matplotlib
+matplotlib.use('Agg')
 import matplotlib.pyplot as plt
 import pandas as pd
 from scipy import linalg