Streamlit==1.18.0 and altair== 4.0 incompatibility

🎈 Using Streamlit
1

Hey everyone,
I have been trying to deploy my streamlit app with GCP.
I encountered the error : KeyError: 'st.session_state has no key “authentication_status”. Did you forget to initialize it?
Here is the concerned code snippet :
name,authentication_status, username = authenticator.login(‘Login’, ‘main’)
if authentication_status:
authenticator.logout(‘Logout’, ‘main’)
if username in [‘username1’,‘username2’]:
main()
elif authentication_status == False:
st.error(‘Username/password is incorrect’)
elif authentication_status == None:
st.warning(‘Please enter your username and password’)
I changed the version of streamlit to 1.18.0 following the recommendations on previous discussions but it has then raised the error : "from altair.vegalite.v4.api import Chart ModuleNotFoundError: No module named ‘altair.vegalite.v4’ "
If you have any clue on how to solve this let me know

2

@caps_j
Yeah, it wasn’t compatible back then but now with Streamlit 1.24.1 and up (latest version being Streamlit 1.25.0 you can have altair 4.2.2.

3

Adding this to requirements.txt should fix the altair issue for older versions of streamlit ModuleNotFoundError: No module named 'altair.vegalite.v4' - #6 by Franky1

4

Hi,
I have already tried this and It didn’t fix it.
In the end I still get the following error : KeyError: 'st.session_state has no key “authentication_status”. Did you forget to initialize it?

5

Sorry, it sounds like that’s a but with GitHub - mkhorasani/Streamlit-Authenticator: A secure authentication module to validate user credentials in a Streamlit application. – have you tried looking at the issues in that repo, and seeing if people have suggested fixes?