Demo doesn't work on Google Colab

[devinbost]

When I try to run the following demo notebook on Google Colab:

https://colab.research.google.com/github/stellargraph/stellargraph/blob/master/demos/node-classification/gat-node-classification.ipynb#scrollTo=bj9n9ho7WXds

when I try to run the first step:

# install StellarGraph if running on Google Colab
import sys
if 'google.colab' in sys.modules:
  %pip install -q stellargraph[demos]==1.2.1

, I get this:

ERROR: Ignored the following versions that require a different python version: 0.10.0 Requires-Python >=3.6.0, <3.8.0; 0.11.0 Requires-Python >=3.6.0, <3.8.0; 0.11.1 Requires-Python >=3.6.0, <3.8.0; 0.4.0 Requires-Python >=3.6,<3.7; 0.4.0b0 Requires-Python >=3.6,<3.7; 0.4.1 Requires-Python >=3.5.0, <3.7.0; 0.5.0 Requires-Python >=3.5.0, <3.7.0; 0.6.0 Requires-Python >=3.5.0, <3.7.0; 0.6.1 Requires-Python >=3.5.0, <3.7.0; 0.7.0 Requires-Python >=3.5.0, <3.8.0; 0.7.1 Requires-Python >=3.5.0, <3.8.0; 0.7.2 Requires-Python >=3.5.0, <3.8.0; 0.7.3 Requires-Python >=3.5.0, <3.8.0; 0.8.0 Requires-Python >=3.5.0, <3.8.0; 0.8.1 Requires-Python >=3.5.0, <3.8.0; 0.8.2 Requires-Python >=3.5.0, <3.8.0; 0.8.3 Requires-Python >=3.5.0, <3.8.0; 0.8.4 Requires-Python >=3.5.0, <3.8.0; 0.9.0 Requires-Python >=3.6.0, <3.8.0; 1.0.0 Requires-Python >=3.6.0, <3.8.0; 1.0.0rc1 Requires-Python >=3.6.0, <3.8.0; 1.1.0 Requires-Python >=3.6.0, <3.9.0; 1.2.0 Requires-Python >=3.6.0, <3.9.0; 1.2.1 Requires-Python >=3.6.0, <3.9.0
ERROR: Could not find a version that satisfies the requirement stellargraph[demos]==1.2.1 (from versions: none)
ERROR: No matching distribution found for stellargraph[demos]==1.2.1

It looks like Colab is running Python 3.10, which appears to be unsupported.

[ArtificialZeng]

is python 3.9 supported?

[shernoble]

is python 3.9 supported?

I tried with 3.9, it couldn't find a matching stellargraph version