[🐛 Bug]: [Python] WebDriver constructor must not assume that BaseOptions instance has _ignore_local_proxy property

[mykola-mokhnach]

What happened?

I'm talking about

selenium/py/selenium/webdriver/remote/webdriver.py

Line 256 in 27ff586

_ignore_local_proxy = options._ignore_local_proxy

The typing info says options: Union[BaseOptions, List[BaseOptions]] = None, while _ignore_local_proxy property is only defined for ArgOptions class. This means any code that inherits Options from BaseOptions rather than from ArgOptions would fail with missing attribute error (which is also happening for the Appium Python client)

How can we reproduce the issue?

Pass any custom class inherited from BaseOptions rather than from ArgOptions to the WebDriver constructor

Relevant log output

if options:
                capabilities = options.to_capabilities()
>               _ignore_local_proxy = options._ignore_local_proxy
E               AttributeError: 'UiAutomator2Options' object has no attribute '_ignore_local_proxy'

### Operating System

macOS

### Selenium version

Python 3.9

### What are the browser(s) and version(s) where you see this issue?

Appium

### What are the browser driver(s) and version(s) where you see this issue?

Any

### Are you using Selenium Grid?

_No response_

[github-actions]

@mykola-mokhnach, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[mykola-mokhnach]

I assume such issue could be easily caught with mypy automatically

[symonk]

It could but we have a lot of work to get that going, types at the moment are quite frankly very messy, any PRs introducing improved types would be greatly appreciated. tox -e mypy exists but its extremely broken and not enforced in CI at all, it's a mammoth task to get everything typed etc

[github-actions]

This issue is stale because it has been open 280 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[github-actions]

This issue is stale because it has been open 280 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[titusfortner]

I think the fix for this should have been just moving it from ArgOptions to BaseOptions?
At any rate, I finally have a PR to at least deprecate this parameter entirely: #13286

[mykola-mokhnach]

Thanks @titusfortner for taking care of it.
This also means we'd need to adjust Appium Python client after the next Selenium release.
FYI @KazuCocoa