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ANN: straight.command 0.1a1 - A command framework with a plugin architecture

New Project Announcement:

I'd like to announce a new project, based on straight.plugin, a command framework that provides a declarative way to define command-line options, sub-commands, and allows plugins from third-parties to expand commands.


This is all very early, I'm calling this version 0.1a1 and lots of things are missing, but here is an example (which works) of a small todo application built with this.


#!/usr/bin/env python

from __future__ import print_function
import sys
from straight.command import Command, Option, SubCommand

class List(Command):
    def run_default(self, **extra):
        for line in open(self.parent.args['filename']):
            print(line.strip('\n'))

class Add(Command):
    new_todo = Option(dest='new_todo', action='append')

    def run_default(self, new_todo, **extra):
        with open(self.parent.args['filename'], 'a') as f:
            for one_todo in new_todo:
                print(one_todo.strip('\n'), file=f)

class Todo(Command):
    filename = Option(dest='filename', action='store')

    list = SubCommand('list', List)
    add = SubCommand('add', Add)

if __name__ == '__main__':
    Todo().run(sys.argv[1:])

And a sample of the result of this little script:

$ ./todo.py todo.txt add "Write an example tool"
$ ./todo.py todo.txt add "Get the documentation cleaned up and on readthedocs"
$ ./todo.py todo.txt add "Blog about the project"
$ ./todo.py todo.txt list
Write an example tool
Get the documentation cleaned up and on readthedocs
Blog about the project

The documentation and source are both available now.

Comments

Anonymous said…
You might also want to have look at opster on Pypi.

ST

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