pyPhases 0.1.1

A Framework for creating progress based applications, like machine learning algroithms

pyPhases

A small framework for python projects that are mainly progress based.

The main princible of the framework are Phases.

Architecure

Project

A Project is the composition of phases and the backend.

Phase

A Phase has a main Method and can export data.

Stage

A stage is a group of Phases and only have a name. A Stage can be run seperatly with project.run("stagename")

Decorators

Compontents

Storage and Exporters

Storage

You can add diffrent storage-engines to your project, with project.addStorage(Engine()). A storage you be inherited from pyPhases.storage.Storage and implement the methods read(path: str) and write(path: str, data: bytes). The order is important and the Storages should be ordered from fast to slow.

By Default there is a memory storage, that will save the data in the project, but is not persitent. The default persistent data layer is the filesystem(storage.FileStorage).

Exporter

An Exporter can be registered to transform an Instance or primitive type into a byte string (export(obj : MyObject): bytes) and vice versa (importData(bytes): MyObject).

There is a default ObjectExporter, that is based on pyarror and is compatible with diffrent fromats like pandas Dataframes and numpy arrays.

register Data

When a phase wants to register data (self.project.registerData("myDataId", myData) within the phase), the data is passed to an exporter. If an exporter is found the data will be passed to alle the storages. They will save the data somewhere (persitent or not).

example:

reading the data

A phase can request data with self.project.getData("myDataId", MyDataType). The Data will be passed sequential to the storage layer and will pass the data from the first storage that is able to get it. If no storage can provide the data, the project will search for a phase that exports this data-id and run that specific phase.

example:

example

This is a example data layer with 3 storages: memory, file, database (not default)