Add spinner indicator

app.py

@@ -21,8 +21,9 @@ def summarize_text(text):
 
 input = st.text_area('Enter long text')
 
-output = summarize_text(input)
-
+with st.spinner('Summarizing')
+    output = summarize_text(input)
+    st.success('Summary done 👍🏾')
 
 if st.button('Summarize text'):
     st.markdown(f'''
@@ -62,17 +63,19 @@ try:
             page_text_stack.append(page_text)
 
         return page_text_stack
-
-    pdf_input = extract_text(uploaded_pdf)
+    with st.spinner('Extracting text from PDF...')
+        pdf_input = extract_text(uploaded_pdf)
+        st.success('Text extracted')
 
     pdf_output = []
     
     for stack in pdf_input:
         summarize_text(stack)
         pdf_output.append(stack)
-        
-    pdf_summary = '\n'.join(pdf_output)
-    
+
+    with st.spinner('Summarizing extracted text...')
+        pdf_summary = '\n'.join(pdf_output)
+        st.success('Summary complete')
 
 except: # Handle blank file error
     st.error('Please select a valid file')