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import abc
import argparse
import inspect
class Command(object):
"""Base class for command plugins.
"""
__metaclass__ = abc.ABCMeta
def __init__(self, app, app_args):
self.app = app
self.app_args = app_args
return
def get_description(self):
"""Return the command description.
"""
return inspect.getdoc(self.__class__) or ''
def get_parser(self, prog_name):
"""Return an argparse.ArgumentParser.
"""
parser = argparse.ArgumentParser(
description=self.get_description(),
prog=prog_name,
)
return parser
@abc.abstractmethod
def run(self, parsed_args):
"""Do something useful.
"""
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