2.2. Context Protocol

Caterpillar provides a special protocol for working with contexts. It is designed to enable access to context variables while packing or unpacking data. This procotol is implemented by all context-related classes in this package.

object.__context_getattr__(self, path) → object

This function is used to retrieve a value from the context. It is implementation dependent whether nested paths are supported. By default, multiple path elements are sperated by a single dot.

For example, consider the following path: "foo.bar". The context implementation should first resolve the value of "foo" and then retrieve the value of "bar" from the result.