Specifying python version

MaximeLutel · November 4, 2022, 2:55pm

Hello,

I’m having troubles deploying this app: https://prophet.streamlit.app/ (repository: GitHub - artefactory/streamlit_prophet: Streamlit app to train, evaluate and optimize a Prophet forecasting model.).

I have the following error:
“Current Python version (3.7.15) is not allowed by the project (>=3.8 <3.11).
Please change python executable via the “env use” command.”

Where should I change the python version? I would like it to run in python 3.8 but it is currently stuck to 3.7.15.

I’m using poetry for dependency management, here is the pyproject.toml file:

github.com

artefactory/streamlit_prophet/blob/main/pyproject.toml

# Poetry pyproject.toml: https://python-poetry.org/docs/pyproject/

[build-system]
requires = ["poetry_core>=1.0.0"]
build-backend = "poetry.core.masonry.api"

[tool.poetry]
name = "streamlit_prophet"
version = "1.0.0"
description = "Deploy a Streamlit app to train, evaluate and optimize a Prophet forecasting model visually."
readme = "README.md"
authors = [
  "Maxime Lutel <maxime.lutel@artefact.com>"
]
license = "MIT"
repository = "https://github.com/artefactory-global/streamlit_prophet"
homepage = "https://github.com/artefactory-global/streamlit_prophet"

# Keywords description https://python-poetry.org/docs/pyproject/#keywords
keywords = ["streamlit", "prophet", "forecasting", "time-series", "data-science"]

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Thanks in advance

Caroline · November 4, 2022, 4:04pm

Hey @MaximeLutel, have you checked out our docs?

MaximeLutel · November 4, 2022, 4:46pm

Hi @Caroline,
Yes but the app is already created, so I don’t have the “advanced settings” section you mention, where I could choose the python version. Is it possible to change the python version after the app creation? I would like to keep the same app and not delete it, as it is in the gallery and it has a specific subdomain name.

Caroline · November 4, 2022, 6:11pm

You would have to delete the app and then re-deploy it to change the Python version unfortunately

jgieseler · May 23, 2023, 1:40pm

I have the same problem (or will run into it soon) concerning re-deploying the app as @MaximeLutel. @Caroline, if I delete and re-deploy it, can it easily get the same specific subdomain as before?

blackary · May 23, 2023, 3:01pm

@jgieseler Yes, that shouldn’t be a problem. Theoretically someone else could grab the subdomain before you are able to switch it to the new app, but the odds of that are pretty low.

Delete the app
Create a new app
Set the subdomain of the new app to the old subdomain (you can even do this before step 2 finishes at share.streamlit.io)

As long as you don’t wait for a very long time between 1 and 3, you shouldn’t have any issues keeping the same subdomain.