added support to save file locally on streamlite demo

app.py

@@ -263,8 +263,9 @@ target_variables = [
 uploaded_file = st.file_uploader(
     "Please upload your email (In HTML Format)", type=["html"])
 
-with open(os.path.join("./",uploaded_file.name),"wb") as f:
-    f.write(uploaded_file.getbuffer())
+def save_file(uploaded_file):
+    with open(os.path.join("./",uploaded_file.name),"wb") as f:
+        f.write(uploaded_file.getbuffer())
 
 if uploaded_file is None:
     # upload_img = PIL.Image.open(uploaded_file)
@@ -326,6 +327,7 @@ if st.button('Generate Predictions'):
     if uploaded_file is None:
         st.error('Please upload a email (HTML format)')
     else:
+        save_file(uploaded_file)
         placeholder = st.empty()
         placeholder.text('Loading Data')