Update app.py

app.py

@@ -101,6 +101,8 @@ def run():
                 os.environ['OPENAI_API_KEY'] = openai_api_key
                 st.session_state['OPENAI_API_KEY'] = openai_api_key
                 st.sidebar.success("OpenAI API Key set successfully.")
+            else:
+                openai_api_key = ""
     with st.sidebar:
         st.selectbox("langue:",lang_tgt, format_func = find_lang_label, key="Language", label_visibility="hidden")