Index: lex_build.py
==================================================================
--- lex_build.py
+++ lex_build.py
@@ -1,8 +1,10 @@
 #!python3
 
-# Lexicon builder
+"""
+Lexicon builder
+"""
 
 import argparse
 from distutils import dir_util
 
 import graphspell.dawg as fsa
@@ -20,10 +22,11 @@
         oDic = IBDAWG(sfDict + ".bdic")
         oDic.writeAsJSObject("graphspell-js/_dictionaries/" + sfDict + ".json", bBinaryDictAsHexString=True)
 
 
 def main ():
+    "parse args from CLI"
     xParser = argparse.ArgumentParser()
     xParser.add_argument("src_lexicon", type=str, help="path and file name of the source lexicon")
     xParser.add_argument("lang_code", type=str, help="language code")
     xParser.add_argument("lang_name", type=str, help="language name")
     xParser.add_argument("dic_filename", type=str, help="dictionary file name (without extension)")