Update app.py

app.py

@@ -17,7 +17,7 @@ def translate_text(sentence: str, target_language: str) -> str:
         target_language: The language to translate the sentence into (e.g., 'fr' for French, 'es' for Spanish).
     """
     try:
-        translator = pipeline("translation", model="Helsinki-NLP/opus-mt-en-{target_language}")
+        translator = pipeline("translation", model=f"Helsinki-NLP/opus-mt-en-{target_language}")
         translation = translator(sentence)[0]['translation_text']
         return f"Translated text ({target_language}): {translation}"
     except Exception as e: