Trying dropdown method

app.py

@@ -2,7 +2,20 @@ import streamlit as st
 import langcodes
 from allosaurus.app import read_recognizer
 from pathlib import Path
+import string
+from itertools import combinations
+from collections import defaultdict
 
+@st.cache
+def get_supported_codes():
+  model = read_recognizer()  
+  supported_codes = []
+  for combo in combinations(string.ascii_lowercase, 3):
+    code = "".join(combo)
+    if model.is_available(code):
+      supported_codes.append(combo)
+  return supported_codes
+  
   
 def get_path_to_wav_format(uploaded_file):
 #  st.write(dir(uploaded_file))
@@ -23,40 +36,31 @@ def get_path_to_wav_format(uploaded_file):
     return new_desired_path
 
 
-def get_langcode_for_allosaurus(input_code, model):
+def get_langcode_description(input_code):
   langcode = "ipa" # the default allosaurus recognizer
   description = "the default universal setting, not specific to any language"
   
   if not input_code:
-    return langcode, description
+    return description
     
 
 
   try:
     lang = langcodes.get(input_code)
     alpha3 = lang.to_alpha3()
-    if model.is_available(alpha3 ): # https://github.com/xinjli/allosaurus/blob/f5aa296dc97a90e3035f6cc0fd281cfb64536228/allosaurus/app.py#L57    
-      langcode = alpha3 
-      description = lang.display_name()
-      st.info(f"{langcode} is supported by Allosaurus}")
-    else:
-#      st.info(f"Could not find supported language for {input_code}")
-      st.error(f"Allosaurus doesn't recognize the language code {langcode}}. Perhaps try looking for [alternate codes](https://huggingface.co/spaces/cdleong/langcode-search). Or possibly it's just that there's no support for that particular language code. Proceeding with default setting")
+    langcode = alpha3 
+    description = lang.display_name()
     
   except langcodes.LanguageTagError as e:
-    st.error(f"langcodes library could not find a 3-letter ISO code for {input_code}. It may not be a valid code, try searching for [alternate codes](https://huggingface.co/spaces/cdleong/langcode-search). Proceeding with default setting"
-    
-  return langcode, description 
-  
-  
+    pass    
+  return description 
   
 
 
 if __name__ == "__main__":
-  input_code = st.text_input("(optional) 2 or 3-letter ISO code for input language. 2-letter codes will be converted to 3-letter codes", max_chars=3)
-
-
-
+#  input_code = st.text_input("(optional) 2 or 3-letter ISO code for input language. 2-letter codes will be converted to 3-letter codes", max_chars=3)
+  supported_codes = get_supported_codes()
+  input_code = st.selectbox("ISO code for input language. Allosaurus doesn't need this, but it can improve accuracy", options=supported_codes, format_func=get_langcode_description)
   
   model = read_recognizer()
   langcode, description = get_langcode_for_allosaurus(input_code)