patroni.dynamic_loader module
Helper functions to search for implementations of specific abstract interface in a package.
- patroni.dynamic_loader.find_class_in_module(module: module, cls_type: Type[ClassType]) → Type[ClassType] | None View on GitHub
-
Try to find the implementation of cls_type class interface in module matching the module name. +
- Parameters:
- Returns:
-
class with a name matching the name of module that implements cls_type or
Noneif not found.
- patroni.dynamic_loader.iter_classes(package: str, cls_type: Type[ClassType], config: Config | Dict[ str, Any] | None = None) → Iterator[ Tuple[ str, Type[ClassType]]] View on GitHub
-
Attempt to import modules and find implementations of cls_type that are present in the given configuration. + Note
If a module successfully imports we can assume that all its requirements are installed. + Parameters:;; Yields:;; a tuple containing the module `+name+` and the imported class object.
- patroni.dynamic_loader.iter_modules(package: str) → List[ str] View on GitHub
-
Get names of modules from package, depending on execution environment. + Note
If being packaged with PyInstaller, modules aren’t discoverable dynamically by scanning source directory because https://docs.python.org/3/library/importlib.html#importlib.machinery.FrozenImporter[`+importlib.machinery.FrozenImporter+`] doesn’t implement link:#patroni.dynamic_loader.iter_modules[`+iter_modules()+`]. But it is still possible to find all potential modules by iterating through `+toc+`, which contains list of all “frozen” resources. + Parameters:;; *package* – a package name to search modules in, e.g. `+patroni.dcs+`. Returns:;; list of known module names with absolute python module path namespace, e.g. `+patroni.dcs.etcd+`.
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