/usr/lib/python3/dist-packages/cliff/formatters/base.py is in python3-cliff 1.15.0-2ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | """Base classes for formatters.
"""
import abc
import six
@six.add_metaclass(abc.ABCMeta)
class Formatter(object):
@abc.abstractmethod
def add_argument_group(self, parser):
"""Add any options to the argument parser.
Should use our own argument group.
"""
@six.add_metaclass(abc.ABCMeta)
class ListFormatter(Formatter):
"""Base class for formatters that know how to deal with multiple objects.
"""
@abc.abstractmethod
def emit_list(self, column_names, data, stdout, parsed_args):
"""Format and print the list from the iterable data source.
:param column_names: names of the columns
:param data: iterable data source, one tuple per object
with values in order of column names
:param stdout: output stream where data should be written
:param parsed_args: argparse namespace from our local options
"""
@six.add_metaclass(abc.ABCMeta)
class SingleFormatter(Formatter):
"""Base class for formatters that work with single objects.
"""
@abc.abstractmethod
def emit_one(self, column_names, data, stdout, parsed_args):
"""Format and print the values associated with the single object.
:param column_names: names of the columns
:param data: iterable data source with values in order of column names
:param stdout: output stream where data should be written
:param parsed_args: argparse namespace from our local options
"""
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