Update app.py

app.py

@@ -508,12 +508,17 @@ def main():
   #with open("smalljson.json", "r+") as fi:
     #data = fi.read()
     #fi.seek(0)
-  file_jso = open('smalljson.json','r+')
-  st.write(file_jso.read())
-  file_jso.truncate(0)
-  file_jso.write(json_data)
-  st.write('after',file_jso.read())
-  file_jso.close()
+  with open('smalljson.json','r+') as fi:
+      data = fi.read()
+      st.write(data)
+      fi.seek(0)
+      fi.write(json_data)
+      st.write('after',fi.read())
+      fi.truncate()
+  # file_jso.truncate(0)
+  # file_jso.write(json_data)
+  # st.write('after',file_jso.read())
+  # file_jso.close()
     # api.upload_file(
     #     path_or_fileobj=json_data,
     #     path_in_repo="ch.json",