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48d8c91b19
Migrates Superset's example data system from Python-based scripts to YAML configuration files, providing a cleaner, more maintainable approach to managing example datasets, charts, and dashboards. - Converted 9 Python example modules to YAML configurations - Exported existing examples from database and added as YAML files: - 11 dashboards (USA Births Names, World Bank's Data, etc.) - 115 charts - 25 datasets - Moved test-specific fixtures to `tests/fixtures/examples/` - Removed theme_id from dashboard exports for compatibility - **New command group**: `superset examples` with subcommands: - `load` - Load example data (replaces `load-examples`) - `clear-old` - Remove old Python-based examples - `clear` - Placeholder for future YAML clearing - `reload` - Clear and reload in one command - **Backwards compatibility**: `superset load-examples` still works with deprecation warning - **Safety mechanism**: Detects old examples and preserves them to avoid data loss - Fixed JSON data loading - examples can now load `.json.gz` files from CDN - Fixed Docker compose configuration for isolated development - Fixed webpack WebSocket configuration for different ports - Import operations now log what's being created vs updated: - "Creating new dashboard: Sales Dashboard" - "Updating existing chart: World's Population" - Provides clear visibility into the import process - Moved import logging to individual import functions (DRY principle) - Non-destructive migration approach - no user data is deleted - Deterministic UUID generation for consistent example data - Tested migration from old Python examples to new YAML format - Verified safety mechanism prevents accidental data overwrites - Confirmed backwards compatibility with deprecated command - All pre-commit checks pass - Updated installation docs to use new CLI commands - Added deprecation notice to UPDATING.md - Updated development documentation None - the old `load-examples` command continues to work with a deprecation warning. For users with existing Python-based examples: 1. Run `superset examples clear-old --confirm` to remove old examples 2. Run `superset examples load` to load new YAML-based examples