nvda

8cbd3bb6 - Python 3 imports: additional work on builtins, relative imports, importlib (PR #8727)

Python 3 imports: additional work on builtins, relative imports, importlib (PR #8727) Fixes #8712 Fixes #8724 Fixes #8768 Support Python 3 style imports. Python 3 wants a dot (.) when importing modules from the same folder. When using __import__ function, the level argument specifies search level (default is 0). Thus allow other IAccessible modules to be loaded by specifying level of 1 (relative import from the same folder). Changes made: - Use importlib to import modules at runtime, including for IAccessible modules #8712 - GUI and IAccessible objects: relative imports (from . import ...) #8724 - Import builtin -> builtins (Python Console, language handler) #8768 - Python 2.7 includes a base implementation of importlib which powers __import__ function, with Python 3 providing more features such as importers. Thus use importlib.import_module in app module handler and others, specifying appropriate package names in the process. Because importlib.import_module complains about module names, spell the module name (NVDAObjects.IAccessible.mod). - HRESULT no longer exists in ctypes.wintypes in Python 3. The new location is ctypes.HRESULT. Even in Python 2, ctypes.wintypes.HRESULT points to ctypes.HRESULT.