Update app.py

app.py

@@ -231,7 +231,9 @@ questions = [
     "what is the dependent variable in this study?",
 ]
 
-
+def mask_key(key):
+    return '*' * len(key)
+    
 recommender = SemanticSearch()
 
 title = 'PDF GPT Turbo'
@@ -246,7 +248,7 @@ with gr.Blocks(css="""#chatbot { font-size: 14px; min-height: 1200; }""") as dem
         
         with gr.Group():
             gr.Markdown(f'<p style="text-align:center">Get your Open AI API key <a href="https://platform.openai.com/account/api-keys">here</a></p>')
-            openAI_key = gr.Textbox(label='Enter your OpenAI API key here', password=True)
+            openAI_key = gr.Textbox(label='Enter your OpenAI API key here', preprocess=mask_key)
             url = gr.Textbox(label='Enter PDF URL here   (Example: https://arxiv.org/pdf/1706.06722.pdf )')
             gr.Markdown("<center><h4>OR<h4></center>")
             file = gr.File(label='Upload your PDF/ Research Paper / Book here', file_types=['.pdf'])