Update app.py

app.py

@@ -544,7 +544,6 @@ def translate_text(input_text: str, s_language: str, t_language: str, model_name
         translated_text = f'Source language {s_language} identical to target language {t_language}!'
         message_text = 'Please choose different target and source language!'
         return translated_text, message_text 
-    translated_text = None
     try:    
         if "-mul" in model_name.lower() or "mul-" in model_name.lower() or "-roa" in model_name.lower():
             translated_text, message_text = Translators(model_name, sl, tl, input_text).HelsinkiNLP_mulroa()
@@ -634,14 +633,14 @@ def translate_text(input_text: str, s_language: str, t_language: str, model_name
         elif model_name == "Bergamot":
             translated_text, message_text = Translators(model_name, s_language, t_language, input_text).bergamot()
             
-    except Exception as error:
-        translated_text = error
+    except Exception as trerror:
+        translated_text = f'Error in main function "translate_text": {trerror}'
     finally:
         print(input_text, translated_text, message_text)
         return translated_text, message_text
 
-# Function to swap dropdown values
 def swap_languages(src_lang, tgt_lang):
+    '''Swap dropdown values for source and target language'''
     return tgt_lang, src_lang 
 
 def get_info(model_name: str, sl: str = None, tl: str = None):