[WIP] **_{_{}} Guard optional requests import in exception handler**

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original issue description:

Guard optional requests import in exception handler

The fallback path of is_pi_reachable assumes requests may be missing, but the except (requests.exceptions.RequestException, urllib_request.URLError) still dereferences requests. When the dependency is not installed, requests is None and importing this module raises AttributeError: 'NoneType' object has no attribute 'exceptions', so the Windows client cannot start even though the dependency is supposed to be optional.

Useful? React with 👍 / 👎.

Originally posted by @chatgpt-codex-connector[bot] in #15 (comment)

Original prompt

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This section details on the original issue you should resolve

<issue_title> Guard optional requests import in exception handler</issue_title>
<issue_description> Guard optional requests import in exception handler

The fallback path of is_pi_reachable assumes requests may be missing, but the except (requests.exceptions.RequestException, urllib_request.URLError) still dereferences requests. When the dependency is not installed, requests is None and importing this module raises AttributeError: 'NoneType' object has no attribute 'exceptions', so the Windows client cannot start even though the dependency is supposed to be optional.

Useful? React with 👍 / 👎.

Originally posted by @chatgpt-codex-connector[bot] in #15 (comment)
</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #33

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