Cannot deploy app due to error of cannot load tomllib

[shuynh]

Hello,

I am trying to deploy and app. I am using tomillib in requirement.txt. It seems to be tripping up Streamlit when deploying. tomillib is a core python library starting Python 3.11. Shouldn’t Streamlit support a standard Python library?
https://docs.python.org/3/library/tomllib.html#module-tomllib

Here’s the error message.
ERROR: Could not find a version that satisfies the requirement tomllib (from versions: none)
ERROR: No matching distribution found for tomllib
WARNING: You are using pip version 22.0.3; however, version 24.0 is available.
You should consider upgrading via the ‘/home/adminuser/venv/bin/python -m pip install --upgrade pip’ command.
Checking if Streamlit is installed

[dataprofessor]

Hi @shuynh

By default, apps are deployed using Python 3.9 and you can change this when deploying the app.

More info in the Docs:

Deploy your app - Streamlit Docs

Here’s a screenshot where you can select a Python version of your choice:

[shuynh]

Hello @dataprofessor,

I did pick Python 3.11 in the advanced settings. Not sure why it’s still giving me this error.
Thanks,
Nal

[dataprofessor]

Hmm, that’s interesting. Would explicitly specifying the library in the requirements.txt file help?

[shuynh]

Hi @dataprofessor, I do have it explicitly listed in the requirements.txt as below. Still have the same error.

streamlit>=1.32.2,<2.0.0
chardet>=5.2.0,<6.0.0
openai>=1.14.2,<2.0.0
tomllib

[shuynh]

@dataprofessor user error! Please disregard this. I fixed the error already. Thank you for your help!

[dataprofessor]

Hi @shuynh

Glad to hear that the issue has been resolved!