Update app.py

app.py

@@ -1,6 +1,7 @@
 import streamlit as st
 import langcodes
 
+
 # https://huggingface.co/blog/streamlit-spaces
 langtext = st.text_input("language lookup using https://github.com/rspeer/langcodes, see also https://r12a.github.io/app-subtags/", "english")
 
@@ -36,6 +37,22 @@ if lang is None:
     lang = None
 
 
+def pull_obsolete_codes(iso_code):
+  from requests_html import HTMLSession
+  session = HTMLSession() 
+  r= session.get(f"https://iso639-3.sil.org/code/{iso_code}")
+  for thing in r.html.find(".views-field-nothing", clean=True):
+  lines = thing.text.splitlines()
+  # lines = text.splitlines()
+  obsolete_codes = {}
+  for line in lines:
+    for obsolete_code_name in ["639-1","639-2/B", "639-2/T", "639-3"]
+      if obsolete_code_name in line:
+        print(line)
+        code = line.split()[-1]
+        print(code)
+        obsolete_codes[obsolete_code_name] = code  
+  return obsolete_codes
 
 
 #st.write(f"langcodes found the following tag: {type(found)}") # a Language object
@@ -53,6 +70,13 @@ if lang is not None:
   st.write(f"If it exists, the ISO 639 Code Tables entry for the T variant would be at https://iso639-3.sil.org/code/{t_variant}")
   st.write(f"If it exists, the ISO 639 Code Tables entry for the B variant would be at https://iso639-3.sil.org/code/{b_variant}")
   
+
+  # ethnologue prefers T for german (deu), and T for French
+  obsolete_codes = pull_obsolete_codes(t_variant)
+  
+
+  
+  
   
   broader_tags = lang.broader_tags()
   st.write(f"Broader tags for this language, if any: {broader_tags}")