Update app.py

app.py

@@ -50,8 +50,8 @@ def call_openai_api(persona, user_prompt):
             response = openai.ChatCompletion.create(
                 model="gpt-3.5-turbo",
                 messages=[
-                    {"role": "system", "content": f"You are a knowledgeable assistant that provides short factual answers"},
-                    {"role": "user", "content": f"{persona}{user_prompt}",
+                    {"role": "system", "content": "You are a knowledgeable assistant that provides short factual answers"},
+                    {"role": "user", "content": f"{persona}{user_prompt}"},  # Note the closing bracket here
                 ]
             )
             return response['choices'][0]['message']['content']
@@ -62,6 +62,7 @@ def call_openai_api(persona, user_prompt):
             else:
                 return str(e)  # return the exception message after the last attempt
 
+
 def pdf_to_text(file, user_prompt):
     z = zipfile.ZipFile(file.name, 'r')
     aggregated_text = ''