Update app.py

app.py

@@ -16,10 +16,12 @@ import appStore.doc_processing as processing
 import appStore.excel_convert as excel_convert
 from utils.uploadAndExample import add_upload
 from PIL import Image
-
+import pkg_resources
+installed_packages = pkg_resources.working_set
 
 with st.sidebar:
     # upload and example doc
+    
     choice = st.sidebar.radio(label = 'Select the Document',
                             help = 'You can upload the document \
                             or else you can try a example document', 
@@ -93,6 +95,15 @@ with st.expander("ℹ️ - About this app", expanded=False):
             """)
                   
     st.write("")
+    c4, c5, c6 =  st.columns([12,1,10])
+    with c3:
+        list_ = ""
+        for package in installed_packages:
+            list_ + f"{package.key}=={package.version}\n")
+        
+        st.download_button('Download Requirements', text_contents, file_name='requirements.txt')
+        
+    
 apps = [processing.app, tapp_extraction.app, sector.app, adapmit.app, 
         conditional.app, subtarget.app, category.app]