Remove YAML support from core

5 files changed, 5 insertions, 121 deletions

diff --git a/rest_framework/compat.py b/rest_framework/compat.py
index 5bd85e74..52db9625 100644
--- a/rest_framework/compat.py
+++ b/rest_framework/compat.py
@@ -237,13 +237,6 @@ except ImportError:
     apply_markdown = None
 
 
-# Yaml is optional
-try:
-    import yaml
-except ImportError:
-    yaml = None
-
-
 # XML is optional
 try:
     import defusedxml.ElementTree as etree
diff --git a/rest_framework/parsers.py b/rest_framework/parsers.py
index ccb82f03..e6bb75f6 100644
--- a/rest_framework/parsers.py
+++ b/rest_framework/parsers.py
@@ -12,7 +12,7 @@ from django.http import QueryDict
 from django.http.multipartparser import MultiPartParser as DjangoMultiPartParser
 from django.http.multipartparser import MultiPartParserError, parse_header, ChunkIter
 from django.utils import six
-from rest_framework.compat import etree, yaml, force_text, urlparse
+from rest_framework.compat import etree, force_text, urlparse
 from rest_framework.exceptions import ParseError
 from rest_framework import renderers
 import json
@@ -65,29 +65,6 @@ class JSONParser(BaseParser):
             raise ParseError('JSON parse error - %s' % six.text_type(exc))
 
 
-class YAMLParser(BaseParser):
-    """
-    Parses YAML-serialized data.
-    """
-
-    media_type = 'application/yaml'
-
-    def parse(self, stream, media_type=None, parser_context=None):
-        """
-        Parses the incoming bytestream as YAML and returns the resulting data.
-        """
-        assert yaml, 'YAMLParser requires pyyaml to be installed'
-
-        parser_context = parser_context or {}
-        encoding = parser_context.get('encoding', settings.DEFAULT_CHARSET)
-
-        try:
-            data = stream.read().decode(encoding)
-            return yaml.safe_load(data)
-        except (ValueError, yaml.parser.ParserError) as exc:
-            raise ParseError('YAML parse error - %s' % six.text_type(exc))
-
-
 class FormParser(BaseParser):
     """
     Parser for form data.
diff --git a/rest_framework/renderers.py b/rest_framework/renderers.py
index e87d16d0..a6e4f1bb 100644
--- a/rest_framework/renderers.py
+++ b/rest_framework/renderers.py
@@ -19,7 +19,7 @@ from django.utils import six
 from django.utils.xmlutils import SimplerXMLGenerator
 from rest_framework import exceptions, serializers, status, VERSION
 from rest_framework.compat import (
-    SHORT_SEPARATORS, LONG_SEPARATORS, StringIO, smart_text, yaml
+    SHORT_SEPARATORS, LONG_SEPARATORS, StringIO, smart_text
 )
 from rest_framework.exceptions import ParseError
 from rest_framework.settings import api_settings
@@ -189,29 +189,6 @@ class XMLRenderer(BaseRenderer):
             xml.characters(smart_text(data))
 
 
-class YAMLRenderer(BaseRenderer):
-    """
-    Renderer which serializes to YAML.
-    """
-
-    media_type = 'application/yaml'
-    format = 'yaml'
-    encoder = encoders.SafeDumper
-    charset = 'utf-8'
-    ensure_ascii = 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, Dumper=self.encoder, allow_unicode=not self.ensure_ascii)
-
-
 class TemplateHTMLRenderer(BaseRenderer):
     """
     An HTML renderer for use with templates.
diff --git a/rest_framework/settings.py b/rest_framework/settings.py
index 1e8c27fc..3abc1fe8 100644
--- a/rest_framework/settings.py
+++ b/rest_framework/settings.py
@@ -5,11 +5,11 @@ For example your project's `settings.py` file might look like this:
 REST_FRAMEWORK = {
     'DEFAULT_RENDERER_CLASSES': (
         'rest_framework.renderers.JSONRenderer',
-        'rest_framework.renderers.YAMLRenderer',
+        'rest_framework.renderers.TemplateHTMLRenderer',
     )
     'DEFAULT_PARSER_CLASSES': (
         'rest_framework.parsers.JSONParser',
-        'rest_framework.parsers.YAMLParser',
+        'rest_framework.parsers.TemplateHTMLRenderer',
     )
 }
 
diff --git a/rest_framework/utils/encoders.py b/rest_framework/utils/encoders.py
index 4d6bb3a3..2c97f1d7 100644
--- a/rest_framework/utils/encoders.py
+++ b/rest_framework/utils/encoders.py
@@ -5,10 +5,9 @@ from __future__ import unicode_literals
 from django.db.models.query import QuerySet
 from django.utils import six, timezone
 from django.utils.functional import Promise
-from rest_framework.compat import force_text, OrderedDict
+from rest_framework.compat import force_text
 import datetime
 import decimal
-import types
 import json
 
 
@@ -56,65 +55,3 @@ class JSONEncoder(json.JSONEncoder):
         elif hasattr(obj, '__iter__'):
             return tuple(item for item in obj)
         return super(JSONEncoder, self).default(obj)
-
-
-try:
-    import yaml
-except ImportError:
-    SafeDumper = None
-else:
-    # Adapted from http://pyyaml.org/attachment/ticket/161/use_ordered_dict.py
-    class SafeDumper(yaml.SafeDumper):
-        """
-        Handles decimals as strings.
-        Handles OrderedDicts as usual dicts, but preserves field order, rather
-        than the usual behaviour of sorting the keys.
-        """
-        def represent_decimal(self, data):
-            return self.represent_scalar('tag:yaml.org,2002:str', six.text_type(data))
-
-        def represent_mapping(self, tag, mapping, flow_style=None):
-            value = []
-            node = yaml.MappingNode(tag, value, flow_style=flow_style)
-            if self.alias_key is not None:
-                self.represented_objects[self.alias_key] = node
-            best_style = True
-            if hasattr(mapping, 'items'):
-                mapping = list(mapping.items())
-                if not isinstance(mapping, OrderedDict):
-                    mapping.sort()
-            for item_key, item_value in mapping:
-                node_key = self.represent_data(item_key)
-                node_value = self.represent_data(item_value)
-                if not (isinstance(node_key, yaml.ScalarNode) and not node_key.style):
-                    best_style = False
-                if not (isinstance(node_value, yaml.ScalarNode) and not node_value.style):
-                    best_style = False
-                value.append((node_key, node_value))
-            if flow_style is None:
-                if self.default_flow_style is not None:
-                    node.flow_style = self.default_flow_style
-                else:
-                    node.flow_style = best_style
-            return node
-
-    SafeDumper.add_representer(
-        decimal.Decimal,
-        SafeDumper.represent_decimal
-    )
-    SafeDumper.add_representer(
-        OrderedDict,
-        yaml.representer.SafeRepresenter.represent_dict
-    )
-    # SafeDumper.add_representer(
-    #     DictWithMetadata,
-    #     yaml.representer.SafeRepresenter.represent_dict
-    # )
-    # SafeDumper.add_representer(
-    #     OrderedDictWithMetadata,
-    #     yaml.representer.SafeRepresenter.represent_dict
-    # )
-    SafeDumper.add_representer(
-        types.GeneratorType,
-        yaml.representer.SafeRepresenter.represent_list
-    )