# Messages

The `pykka.messages` module contains Pykka’s own actor messages.

In general, you should not need to use any of these classes. However, they have been made part of the public API so that certain optimizations can be done without touching Pykka’s internals.

An example is to combine `ask()` and `ProxyCall` to call a method on an actor without having to spend any resources on creating a proxy object:

    reply = actor_ref.ask(
        ProxyCall(
            attr_path=['my_method'],
            args=['foo'],
            kwargs={'bar': 'baz'}
        )
    )

Another example is to use `tell()` instead of `ask()` for the proxy method call, and thus avoid the creation of a future for the return value if you don’t need it.

It should be noted that these optimizations should only be necessary in very special circumstances.

Added in version 2.0.

class pykka.messages.ProxyCall(attr_path: AttrPath, args: tuple[Any, ...], kwargs: dict[str, Any])

  Message to ask the actor to call the method with the arguments.

  attr_path: AttrPath

    List with the path from the actor to the method.

  args: tuple[Any, ...]

    List with positional arguments.

  kwargs: dict[str, Any]

    Dict with keyword arguments.

class pykka.messages.ProxyGetAttr(attr_path: AttrPath)

  Message to ask the actor to return the value of the attribute.

  attr_path: AttrPath

    List with the path from the actor to the attribute.

class pykka.messages.ProxySetAttr(attr_path: AttrPath, value: Any)

  Message to ask the actor to set the attribute to the value.

  attr_path: AttrPath

    List with the path from the actor to the attribute.

  value: Any

    The value to set the attribute to.