Update app.py

app.py

@@ -54,6 +54,8 @@ def translate_with_upload(text, file):
         # 텍스트에서 빈 줄을 제거합니다.
         text_input = re.sub(r'^\n', '', text_input, flags=re.MULTILINE)
         text_input = re.sub(r'\n\n+', '\n\n', text_input)
+    else:
+        text_input = ""
         
     return translate(text_input, openapi_key)