No input text

app.py

@@ -464,6 +464,10 @@ def translate_text(input_text: str, s_language: str, t_language: str, model_name
     sl = all_langs[s_language][0]
     tl = all_langs[t_language][0]
     message_text = f'Translated from {s_language} to {t_language} with {model_name}'
+    if not input_text:
+        translated_text = f'No input text entered!'
+        message_text = 'Please enter a text to translate!'
+        return translated_text, message_text
     if sl == tl:
         translated_text = f'Source language {s_language} identical to target language {t_language}!'
         message_text = 'Please choose different target and source language!'