Update app.py

app.py

@@ -6,9 +6,12 @@ with urllib.request.urlopen('https://huggingface.co/datasets/Seetha/visual_files
 
 with open('/home/user/app/level2.json','r+') as fi:
     data = fi.read()
-    st.write(data)
+    st.write('before change', data)
     fi.seek(0)
-    fi.write('Hello world')
+    fi.write('Hello world!')
     fi.truncate()
     st.write(os.path.abspath("level2.json"))
-    
+
+with open('/home/user/app/level2.json','r') as dat:
+    data_after = dat.read()
+    st.write(data_after)