Latest textual code_browser.tcss error in stylesheet

[esawdust]

Just installed textual and textual-dev and was starting to run through the examples, but hit a snag right off with the code_browser.py example. Wondering if this is an issue with the latest or a problem with my environment, but suspect the example just broken as I can run the
python -m textual without any issues.

Environment:
Ubuntu 22.04 Jammy
WSL
Anaconda
Python 3.7.16

Here's the console output when trying to run the code_browser.py example:

(captain_env) lcox@DESKTOP-DBFUCUV:~/.../examples (main)$ python code_browser.py ../ Error in stylesheet: /home/lcox/seasats/textual/examples/code_browser.tcss:3:5 ╭───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ 1 Screen { │ │ 2 │ background: $surface-darken-1; │ │ ❱ 3 │ &:inline { │ │ 4 │ │ height: 50vh; │ │ 5 │ } │ ╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ • Expected one of 'comment line', 'comment start', 'declaration name', 'declaration set end', or 'whitespace'. • Did you forget a semicolon at the end of a line? (captain_env) lcox@DESKTOP-DBFUCUV:~/.../examples (main)$

[davep]

What version of Textual are you using to run this with? Apparently your Python version is 3.7 and Textual dropped support for that a while back, which might suggest you're using an old Textual version to run code from the current repo?