Add fix to gradio version

app.py

@@ -1,5 +1,7 @@
-import math
 import json
+import math
+import os
+
 import gradio as gr
 import numpy as np
 import pandas as pd
@@ -10,6 +12,10 @@ from sklearn.model_selection import RandomizedSearchCV
 from sklearn.naive_bayes import ComplementNB
 from sklearn.pipeline import Pipeline
 
+os.system("pip uninstall -y gradio")
+os.system("pip install gradio==3.26.0")
+
+
 CATEGORIES = [
     "alt.atheism",
     "comp.graphics",