Update app.py

app.py

@@ -1,7 +1,7 @@
 import numpy as np
 import base64
 import cv2
-import streamlit at st
+import streamlit as st
 from fastai.vision.all import *
 st.markdown('<h1 style="color:black;">Vgg 19 Image classification model</h1>', unsafe_allow_html=True)
 st.markdown('<h2 style="color:gray;">The image classification model classifies image into following categories:</h2>', unsafe_allow_html=True)