Update app.py

app.py

@@ -77,15 +77,12 @@ def show_bill(bdict):
     st.markdown(escape_markdown(bdict["text"]))
 
 
-
-
-
 if "messages" not in st.session_state:
     st.session_state["messages"] = []
 if "openai_model" not in st.session_state:
     st.session_state["openai_model"] = "gpt-3.5-turbo-0125"
 if "openai_api_key" not in st.session_state:
-    st.session_state["openai_api_key"] = None
+    st.session_state["openai_api_key"] = ""
 
 
 df = get_data()
@@ -93,6 +90,8 @@ df = get_data()
 
 with st.sidebar:
 
+    error_header = st.empty()
+    
     st.header("Configuration")
 
     st.text_input(
@@ -101,7 +100,8 @@ with st.sidebar:
         type="password",
         key="openai_api_key",
     )
-
+    st.write("You can create an OpenAI API key [here](https://platform.openai.com/account/api-keys)")
+    
     MODELS = ["gpt-3.5-turbo-0125", "gpt-4-0125-preview"]
     st.selectbox("Model Name", MODELS, key="openai_model")
 
@@ -123,7 +123,7 @@ with st.sidebar:
 
 system_message = {
     "role": "system",
-    "content": "You are a helpful legislative question answering assistant. Use the following legislative text to help answer user questions.\n\n---" + bdict["text"],
+    "content": "You are a helpful legislative question answering assistant. Use the following legislative text to help answer user questions.\n\n" + bdict["text"],
 }
 
 
@@ -139,8 +139,11 @@ for message in st.session_state["messages"]:
 
 if prompt := st.chat_input("How can I help you understand this bill?"):
 
-    if st.session_state["openai_api_key"] is None:
-        st.warning("Enter API key to chat")
+    if st.session_state["openai_api_key"] == "":
+        error_header.warning("Enter API key to chat")
+        st.stop()
+    elif not st.session_state["openai_api_key"].startswith("sk-"):
+        error_header.warning("Enter valid API key to chat")
         st.stop()
     else:
         client = OpenAI(api_key=st.session_state["openai_api_key"])