Streamlit Form processes the previously entered Input instead of the Currently submitted one

Using Streamlit
,
1

Hello, I’ve been unable to figure out this issue for a while. I have created a Streamlit form as the frontend for a model. But for some reason, I need to type every input twice before it generates a relevant response.
For example, I boot up my Streamlit app, and type in “List out ABC”. It provides the correct answer.
Next, I delete the input and type “List out DEF”. But it again takes “List out ABC” as the input and provides a related answer!
If I give a different input in my third try, it works again. But then in the 4th try, it repeats the 3rd input, and so on.

Here is the code -

with st.form("query_tabular_data"):
    if 'query_tabular' not in st.session_state:
        st.session_state['query_tabular'] = ''  
          
    query_input = st.text_input("Query:", value=st.session_state['query_tabular'])
    submitted = st.form_submit_button('Submit')
    if submitted:
        st.session_state['query_tabular'] = query_input
        st.write("Current input stored:", st.session_state['query_tabular'])
        colored_header(label='Answer', description='', color_name='green-50')
        with st.spinner("Generating response..."):
                try :    
                    response = test_query(function, st.session_state['query_tabular'])
                except Exception as e:
                    result = 'Error Generating Answer ,'+ str(e)
        #visualization code below

I’ve tried debugging however I can but I’m not particularly experienced with Streamlit so if anyone can point out my mistake it will be much appreciated!

2

That line is the issue. Try not setting the value. Streamlit will remember it for you. Also, from the remainder of the code, I do not see why you have to use st.session_state at all. You could just use the query_input variable directly.

1 Like
3

Thank you so much. That did the trick. And noted on the session state as well.