APEtype

The apetype python package unites the builtin modules argparse and typing. Central is the ConfigBase class, which user classes can inherit from, to define their configurations. This is similar to configurations in the luigi package but with a much cleaner interface. Build upon the config class is a task class, in analogy to luigi.

Documentation

https://apetype.readthedocs.io/en/latest/

Examples

Settings

from apetype import ConfigBase
class Settings(ConfigBase):
    a: int = 0 # an integer
    d: float = .1 # a float
    c: str = 'a'
settings = Settings()
print(settings.a, settings['a'])

This will generate a CLI with one group of arguments.

from apetype import ConfigBase
class SettingsDeep(ConfigBase):
    class group1:
        a: int = 0
        b: float = 0.
    class group2:
        c: str = 'a'
        d: bool = 'b'
settings = Settings()
print(settings.a, settings['a'])

This will generate a CLI with grouped arguments, each group having the name of the inner class.

Tasks

from argtype.tasks import TaskBase
class TaskDep(TaskBase):
    a: str = '/tmp/file1'

    def generate_output(_) -> str:
        return _.a    

class Task(TaskBase):    
    # Task settings
    a: int = 10
    b: str = 'a'

    def generate_output1(_, task_dependence1: TaskDep) -> int:
        print(task_dependence1.a)
        return 0
    
    def generate_output2(_) -> str:
        with _.env('sh') as env:
            env.exec('which python')
            return env.output

    def generate_output3(_) -> str:
        with _.env('py') as env:
            env.exec(f'''
            for i in range({_.a}):
                print(i)
            ''')
            return env.output

task = Task()
task.run()
print(task._input, task._output)

Perspective

This is just the initial setup of this project, but already having a basic working implementation. In the future different inherited ConfigBase classes should be mergeable to make a argparse parser with subparsers.

Features

- a class that inherits from the task to test, but also from testcase mixin
    the mixin contains test data for everything that needs to be tested
  - TODO generator to create a range of testcases based on a range of attribute values
- TODO search a package for all defined ConfigBase classes and offer
  automated CLI interface