chainlet.wrapper module

class chainlet.wrapper.WrapperMixin(slave)

Bases: object

Mixin for ChainLinks that wrap other objects

Apply as a mixin via multiple inheritance:

class SimpleWrapper(WrapperMixin, ChainLink):
    /"/"/"Chainlink that calls ``slave`` for each chunk/"/"/"
    def __init__(self, slave):
        super().__init__(slave=slave)

    def chainlet_send(self, value):
        value = self.__wrapped__.send(value)

Wrappers bind their slave to __wrapped__, as is the Python standard, and also expose them via the slave property for convenience.

Additionally, subclasses provide the wraplet() to create factories of wrappers. This requires __init_slave__() to be defined.

slave

classmethod wraplet(*cls_args, **cls_kwargs)

Create a factory to produce a Wrapper from a slave factory

Parameters:

• cls_args – positional arguments to provide to the Wrapper class
• cls_kwargs – keyword arguments to provide to the Wrapper class

Returns:

cls_wrapper_factory = cls.wraplet(*cls_args, **cls_kwargs)
link_factory = cls_wrapper_factory(slave_factory)
slave_link = link_factory(*slave_args, **slave_kwargs)

chainlet.wrapper.getname(obj)

Return the most qualified name of an object

Parameters:obj – object to fetch name Returns:name of obj