LazyLoader
- LazyLoader(loader)
A loader that creates a module which defers loading until attribute access.
© Python Software Foundation. PSF License Version 2 · Official docs ↗
Changed in 3.6
- 3.6: Began calling create_module(), removing the compatibility warning for importlib.machinery.BuiltinImporter and importlib.machinery.ExtensionFileLoader.
Members of LazyLoader
f
- factory
- Construct a callable which returns the eager loader made lazy.
1 Example
>>> import importlib.util >>> import sys >>> def lazy_import(name): ... spec = importlib.util.find_spec(name) ... loader = importlib.util.LazyLoader(spec.loader) ... spec.loader = loader ... module = importlib.util.module_from_spec(spec) ... sys.modules[name] = module ... loader.exec_module(module) ... return module ... >>> lazy_typing = lazy_import("typing") >>> #lazy_typing is a real module object, >>> #but it is not loaded in memory yet. >>> lazy_typing.TYPE_CHECKING False
from the Python docs