Opened against beta, since this pull request fixes regression which ideally should not get into the release.

Link to issue number:

Fixes #14657

Summary of the issue:

In pull request #14528 keyLabels were imported pretty early during NVDA's startup. Since this module contains localized strings at the module level these are translated before languageHandler is initialized. This means that they're translated either to the default language of the system, or for locales for which Python's locale.getdefaultlocale fails they remain in English, disregarding the language set in preferences.

Description of user facing changes

Key labels are once again presented in the language set in preferences.

Description of development approach

1. keyLabels are imported lazily in the configFlags
2. I've added docstring to the keyLabels module explaining when it can be safely imported.

Testing strategy:

On a English Windows set NVDA's language to Polish, ensured that key labels in the keyboard help and in the preferences are displayed in Polish.

Known issues with pull request:

While this pull request fixes this particular issue I'm of the opinion that we should not initialize a fake translation before parsing user's configured language. Since this would be bigger change, unsuitable for the beta branch at this stage, I'm going to open a separate issue to discuss and track this. Edit: I've created #14660

Change log entries:

None needed - unreleased regression

Code Review Checklist:

• Pull Request description:
  • description is up to date
  • change log entries
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• API is compatible with existing add-ons.
• Documentation:
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English
• Security precautions taken.