caching some stuff!

app.py

@@ -57,6 +57,16 @@ def get_valid_epitran_mappings_list():
   
   return filtered_mappings 
 
+@st.cache
+def get_epitran(selected_mapping):
+  if selected_mapping == "cmn-Hans":
+    st.info("Chinese requires a special dictionary. Downloading now")
+    epitran.download.cedict()  
+  
+  st.info("attempting to instantiate epitran transliterator for your language/script")
+  epi = epitran.Epitran(selected_mapping)
+  return epi
+  
 
 if __name__ == "__main__":
 
@@ -75,17 +85,9 @@ if __name__ == "__main__":
   
   description = get_lang_description_from_mapping_name(selected_mapping)
   st.write(f"Selected input language/script: {description}")
-  
-  
-  if selected_mapping == "cmn-Hans":
-    st.info("Chinese requires a special dictionary. Downloading now")
-    epitran.download.cedict()  
-  
-  st.info("attempting to instantiate epitran transliterator for your language/script")
-  epi = epitran.Epitran(selected_mapping)
-  
-  
-  
+    
+  epi = get_epitran(selected_mapping)
+      
   examples = defaultdict(lambda: 'Try typing some words in the language you chose, and they will be transliterated.')
   examples['cmn-Hans'] = '太初有道，道与神同在，道就是神。'
   examples['swa-Latn'] = 'Mwanzoni Kabla ulimwengu haujaumbwa alikuwepo Neno Huyo Neno alikuwa pamoja na Mungu, na Neno alikuwa Mungu.'