Lazy init is done by module entries which are delayed. Although visible in the module, the classes are only created when actually accessed by getattr. Internally, the access to the global Init_xxx functions is redirected to a Shiboken::Module::get function which resolves the classes if not already present in the global type array. PYSIDE6_OPTION_LAZY 0 - no lazy loading 1 - lazy load all known modules 2 - lazy load all modules Task-number: PYSIDE-2404 Change-Id: I98c01856e293732c166662050d0fbc6f6ec9082b Reviewed-by: Shyamnath Premnadh <Shyamnath.Premnadh@qt.io> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>