add

app.py

@@ -248,10 +248,10 @@ plt.close()
             return JSONResponse(content={"error": f"Erreur de syntaxe détectée : {e}\nCode généré :\n{generated_code}"}, status_code=422)
 
         exec_env = {
-    "__builtins__": __builtins__,
-    "df": df,
-}
-exec(generated_code, exec_env)
+            "__builtins__": __builtins__,
+            "df": df,
+            }
+        exec(generated_code, exec_env)
 
         img_path = "plot.png"
         if not os.path.exists(img_path):