renderers.py
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renderers.py
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	# Copyright (C) 2017-2018 The Software Heritage developers
	# See the AUTHORS file at the top-level directory of this distribution
	# License: GNU Affero General Public License version 3, or any later version
	# See top-level LICENSE file for more information

	import yaml

	from rest_framework import renderers


	class YAMLRenderer(renderers.BaseRenderer):
	"""
	Renderer which serializes to YAML.
	"""

	media_type = 'application/yaml'
	format = 'yaml'
	charset = 'utf-8'
	ensure_ascii = False
	default_flow_style = False

	def render(self, data, accepted_media_type=None, renderer_context=None):
	"""
	Renders `data` into serialized YAML.
	"""
	assert yaml, 'YAMLRenderer requires pyyaml to be installed'

	if data is None:
	return ''

	return yaml.dump(
	data,
	stream=None,
	encoding=self.charset,
	allow_unicode=not self.ensure_ascii,
	default_flow_style=self.default_flow_style
	)