Use when creating QGIS projects, understanding PyQGIS architecture, or reasoning about the QGIS data model. Prevents mixing standalone script initialization with plugin context, and threading violations. Covers Qt-based architecture, 5 core modules, project lifecycle, layer model, provider system, a
Use when creating QGIS projects, understanding PyQGIS architecture, or reasoning about the QGIS data model. Prevents mixing standalone script initialization with plugin context, and threading violations. Covers Qt-based architecture, 5 core modules, project lifecycle, layer model, provider system, and QGIS 4.0 Qt6 notes. Keywords: QGIS architecture, QgsProject, QgsApplication, PyQGIS modules, laye