jw-python/tools/python/jwutils/Cmd.py
Jan Lindemann 6dd594d47b Fix multiple Python 3 compatibility issues
Changes in Python 3 that made the code choke:

  o basestring is merged into str
  o print() needs parentesis
  o Class inheritance syntax changed
  o Abstract baseclass (ABCMeta) syntax changed
  o map.iteritems() is replaced by map.items()
  o Inconsistent use of tabs and spaces are no longer tolerated

Signed-off-by: Jan Lindemann <jan@janware.com>
2019-03-10 16:38:59 +01:00

25 lines
552 B
Python

import abc
import argparse
# compatible with Python 2 *and* 3
ABC = abc.ABCMeta('ABC', (object,), {'__slots__': ()})
class Cmd(ABC): # export
@abc.abstractmethod
def run(self, args):
pass
def __init__(self, name, help):
self.name = name
self.help = help
def _run(self, args):
pass
def add_parser(self, parsers):
r = parsers.add_parser(self.name, help=self.help,
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
r.set_defaults(func=self.run)
return r