Update app.py

app.py

@@ -125,6 +125,7 @@ supported_file_types = ('.wav','.mp3','.mp4','.txt')
 valid_files = []
 file_paths = []
 audio_tabs = []
+currDF = None
 temp_dir = tempfile.mkdtemp()
 
 if uploaded_file_paths is not None:
@@ -224,6 +225,7 @@ for i, tab in enumerate(audio_tabs):
                     all_speaker_times[j] += timeSection[1]
 
             all_dataFrame = su.speakerListToDataFrame(sortedSpeakerList)
+            currDF = all_dataFrame
             
             # Lecturer vs. Audience
             #---------------------------------------------------------------------------
@@ -398,4 +400,20 @@ if st.button("Upload Files to Dataset"):
     save_data({"color":colorPref,"direction":radio,"number":selection},
              file_paths,
              userid)
-    st.success('I think it worked!')
+    st.success('I think it worked!')
+
+@st.cache_data
+def convert_df(df):
+   return df.to_csv(index=False).encode('utf-8')
+
+
+if currDF is not None:
+    csv = convert_df(currDF)
+    
+    st.download_button(
+       "Press to Download analysis data",
+       csv,
+       "file.csv",
+       "text/csv",
+       key='download-csv'
+    )