/usr/lib/python2.7/dist-packages/quickstart/serializers.py is in juju-quickstart 1.3.1-0ubuntu1.
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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 | # This file is part of the Juju Quickstart Plugin, which lets users set up a
# Juju environment in very few steps (https://launchpad.net/juju-quickstart).
# Copyright (C) 2013 Canonical Ltd.
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License version 3, as published by
# the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
# SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Juju Quickstart functions for serializing data structures."""
from __future__ import unicode_literals
import yaml
def yaml_load(stream):
"""Parse the YAML document in stream.
The stream argument can be a file like object or a string content.
Produce and return the corresponding Python object, returning strings
as unicode objects.
"""
# See <http://stackoverflow.com/questions/2890146/
# how-to-force-pyyaml-to-load-strings-as-unicode-objects>.
loader_class = type(b'UnicodeLoader', (yaml.SafeLoader,), {})
loader_class.add_constructor(
'tag:yaml.org,2002:str',
lambda loader, node: loader.construct_scalar(node))
return yaml.load(stream, Loader=loader_class)
def yaml_dump(data, stream=None):
"""Serialize a Python object into a YAML stream.
If stream is None, return the produced string instead.
Always serialize collections in the block style.
"""
return yaml.safe_dump(data, stream, default_flow_style=False)
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