Update app.py

app.py

@@ -19,6 +19,8 @@ def get_lang_description_from_mapping_name(string_to_check):
   substrings = string_to_check.split("-")
   substrings = substrings[:2] # first two are ISO 639-3 language, and ISO 15924 script
   string_to_check = "-".join(substrings)
+  
+
 
   description = None
   lang = langcodes.get(string_to_check)
@@ -36,7 +38,7 @@ def get_lang_description_from_mapping_name(string_to_check):
       description = description + " (reduced)"    
   return description
 
-#@st.cache
+@st.cache
 def get_valid_epitran_mappings_list():
   map_path = Path(epitran.__path__[0]) / "data" / "map"
   map_files = map_path.glob("*.*")
@@ -55,41 +57,36 @@ def get_valid_epitran_mappings_list():
   
   return filtered_mappings 
 
-## TODO: Fix unhashable type in return
-#@st.cache
-#def get_epitran(selected_mapping):
-#  if selected_mapping == "cmn-Hans":
-##    st.info("Chinese requires a special dictionary. Downloading now")
-#    epitran.download.cedict()  
-#  
-#  epi = epitran.Epitran(selected_mapping)
-#  return epi
+@st.cache
+def get_epitran(selected_mapping):
+  if selected_mapping == "cmn-Hans":
+#    st.info("Chinese requires a special dictionary. Downloading now")
+    epitran.download.cedict()  
+  
+  epi = epitran.Epitran(selected_mapping)
+  return epi
+  
+
+if __name__ == "__main__":
 
   st.write("# Phonemize your text with [Epitran](https://github.com/dmort27/epitran)!")
 
   st.write("Epitran is a library and tool for transliterating orthographic text as IPA (International Phonetic Alphabet), by Mortensen, David R.  and Dalmia, Siddharth and Littell, Patrick.") 
   
   valid_epitran_mappings = get_valid_epitran_mappings_list()
-  
-  index_of_default_language = valid_epitran_mappings.index("swa-Latn")
-  
+  index_of_swa_latn = valid_epitran_mappings.index("swa-Latn")
   st.write(f"It supports converting many writing sytems to IPA symbols, including approximately {len(valid_epitran_mappings)} languages/scripts, listed below:")
 
   #st.write(valid_epitran_mappings)
   
-  selected_mapping = st.selectbox("Select input language/script:", valid_epitran_mappings, index=index_of_default_language)
+  selected_mapping = st.selectbox("Select input language/script:", valid_epitran_mappings, index=index_of_swa_latn)
 
   
   description = get_lang_description_from_mapping_name(selected_mapping)
   st.write(f"Selected input language/script: {description}")
     
-  st.info("attempting to instantiate Epitran for your language/script")
-
-  if selected_mapping == "cmn-Hans":
-    st.info("Chinese requires a special dictionary. Downloading now")
-    epitran.download.cedict()  
-  
-  epi = epitran.Epitran(selected_mapping)  
+  st.info("attempting to instantiate epitran transliterator for your language/script")    
+  epi = get_epitran(str(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。'
@@ -97,6 +94,9 @@ def get_valid_epitran_mappings_list():
 
   input_text = st.text_area(label="Whatever you type here will be transliterated!", value=examples[selected_mapping])
   
+#  combined_code = "-".join([iso_lang_code, iso_script_code])
+#  st.write(f"Combined code: {combined_code}")
+
 
   st.info(f"transliterating `{input_text}`\n\tusing {selected_mapping}...")  
   transliteration = epi.transliterate(input_text)
@@ -107,7 +107,4 @@ def get_valid_epitran_mappings_list():
   }
   
   st.write(output)
-  
-
-