Support for Altair.v5?

Mats_Johansson · March 7, 2023, 5:44pm

Summary

Streamlit seems to require Altair.v4 so not working with v5?

Steps to reproduce

Code snippet:

pip install altair==5.0.0rc1

streamlit run main.py        

Traceback (most recent call last):
  File "/usr/local/bin/streamlit", line 5, in <module>
    from streamlit.web.cli import main
  File "/usr/local/lib/python3.9/site-packages/streamlit/__init__.py", line 55, in <module>
    from streamlit.delta_generator import DeltaGenerator as _DeltaGenerator
  File "/usr/local/lib/python3.9/site-packages/streamlit/delta_generator.py", line 45, in <module>
    from streamlit.elements.arrow_altair import ArrowAltairMixin
  File "/usr/local/lib/python3.9/site-packages/streamlit/elements/arrow_altair.py", line 36, in <module>
    from altair.vegalite.v4.api import Chart
ModuleNotFoundError: No module named 'altair.vegalite.v4'

Expected behavior:
Any way we can use altair.v5 with Streamlit or when can we expect support for altair.v5?

Debug info

Streamlit, version 1.16.0
Python 3.10.9

Franky1 · March 7, 2023, 5:58pm

It’s only a RC, was released only 5 days ago and has no official release yet, so maybe you’re expecting a bit too much?

Mats_Johansson · March 7, 2023, 6:54pm

Thanks, no problems, a long shot so expectations are low Just some new nice features in v5 I’l like to use and a manual install of v5 is too messy.

willhuang · March 7, 2023, 11:43pm

Hi, we are aware that altair v5 is not going to work with streamlit as of right now:

github.com/streamlit/streamlit

Support Altair 5

opened 07:48AM - 03 Mar 23 UTC

binste

type:bug status:confirmed priority:P0 feature:st.altair_chart

### Checklist - [X] I have searched the [existing issues](https://github.com/st…reamlit/streamlit/issues) for similar issues. - [X] I added a very descriptive title to this issue. - [X] I have provided sufficient information below to help reproduce this issue. ### Summary The [first release candidate for Altair 5](https://github.com/altair-viz/altair/issues/2937) was just released on pip. Streamlit does currently not work for Altair 5 as it imports from `altair.vegalite.v4` which does no longer exist. I assume this was done to prevent Streamlit from breaking once Altair 5 was released. However, we decided to no longer support previous vegalite versions and so these imports will need to be changed to import directly from the top-level `altair` module. You can find the full release notes [here](https://altair-viz.github.io/releases/changes.html#version-5-0-0-unreleased). For context on why we removed support for previous vegalite versions see https://github.com/altair-viz/altair/issues/2817. ### Reproducible Code Example ```Python import streamlit as st import pandas as pd import numpy as np import altair as alt chart_data = pd.DataFrame( np.random.randn(20, 3), columns=['a', 'b', 'c']) c = alt.Chart(chart_data).mark_circle().encode( x='a', y='b', size='c', color='c', tooltip=['a', 'b', 'c']) st.altair_chart(c, use_container_width=True) ``` ### Steps To Reproduce 1. Install Altair 5 rc1 with `pip install altair==5.0.0rc1` 1. Execute reproducible example ### Expected Behavior Streamlit app starts and Altair chart shows up as it has done with Altair 4 ### Current Behavior ``` ModuleNotFoundError Traceback (most recent call last) Cell In[1], line 1 ----> 1 import streamlit as st 2 import pandas as pd 3 import numpy as np File ~/.local/lib/python3.11/site-packages/streamlit/__init__.py:55 52 # Give the package a version. 53 __version__ = _STREAMLIT_VERSION_STRING ---> 55 from streamlit.delta_generator import DeltaGenerator as _DeltaGenerator 56 from streamlit.proto.RootContainer_pb2 import RootContainer as _RootContainer 57 from streamlit.runtime.caching import ( 58 cache_resource as _cache_resource, 59 cache_data as _cache_data, 60 experimental_singleton as _experimental_singleton, 61 experimental_memo as _experimental_memo, 62 ) File ~/.local/lib/python3.11/site-packages/streamlit/delta_generator.py:43 40 # DataFrame elements come in two flavors: "Legacy" and "Arrow". 41 # We select between them with the DataFrameElementSelectorMixin. 42 from streamlit.elements.arrow import ArrowMixin ---> 43 from streamlit.elements.arrow_altair import ArrowAltairMixin 44 from streamlit.elements.arrow_vega_lite import ArrowVegaLiteMixin 45 from streamlit.elements.balloons import BalloonsMixin File ~/.local/lib/python3.11/site-packages/streamlit/elements/arrow_altair.py:36 34 import altair as alt 35 import pandas as pd ---> 36 from altair.vegalite.v4.api import Chart 37 from pandas.api.types import infer_dtype, is_integer_dtype 38 from typing_extensions import Literal ModuleNotFoundError: No module named 'altair.vegalite.v4' ``` ### Is this a regression? - [ ] Yes, this used to work in a previous version. ### Debug info - Streamlit version: - Python version: - Operating System: - Browser: - Virtual environment: ### Additional Information _No response_ ### Are you willing to submit a PR? - [ ] Yes, I am willing to submit a PR!