From 7070dae48da02fa29aa1650af4df28561e343436 Mon Sep 17 00:00:00 2001
From: Mikhail Korobov <kmike84@gmail.com>
Date: Tue, 26 Jan 2016 13:56:16 +0500
Subject: [PATCH 1/2] deprecate unused and untested
 scrapy.utils.datatypes.SiteNode

---
 scrapy/utils/datatypes.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/scrapy/utils/datatypes.py b/scrapy/utils/datatypes.py
index 097bd1ac9..2b54982b8 100644
--- a/scrapy/utils/datatypes.py
+++ b/scrapy/utils/datatypes.py
@@ -137,10 +137,18 @@ class MultiValueDict(dict):
         for key, value in six.iteritems(kwargs):
             self.setlistdefault(key, []).append(value)
 
+
 class SiteNode(object):
     """Class to represent a site node (page, image or any other file)"""
 
     def __init__(self, url):
+        warnings.warn(
+            "scrapy.utils.datatypes.SiteNode is deprecated "
+            "and will be removed in future releases.",
+            category=ScrapyDeprecationWarning,
+            stacklevel=2
+        )
+
         self.url = url
         self.itemnames = []
         self.children = []

From 9c2aa50ea20d2333eb131c6aae7b9842d646e32e Mon Sep 17 00:00:00 2001
From: Mikhail Korobov <kmike84@gmail.com>
Date: Tue, 26 Jan 2016 13:58:20 +0500
Subject: [PATCH 2/2] deprecate unused and untested
 scrapy.utils.datatypes.MultiValueDict

---
 scrapy/utils/datatypes.py | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/scrapy/utils/datatypes.py b/scrapy/utils/datatypes.py
index 2b54982b8..d04b43176 100644
--- a/scrapy/utils/datatypes.py
+++ b/scrapy/utils/datatypes.py
@@ -7,11 +7,22 @@ This module must not depend on any module outside the Standard Library.
 
 import copy
 import six
+import warnings
 from collections import OrderedDict
 
+from scrapy.exceptions import ScrapyDeprecationWarning
+
 
 class MultiValueDictKeyError(KeyError):
-    pass
+    def __init__(self, *args, **kwargs):
+        warnings.warn(
+            "scrapy.utils.datatypes.MultiValueDictKeyError is deprecated "
+            "and will be removed in future releases.",
+            category=ScrapyDeprecationWarning,
+            stacklevel=2
+        )
+        super(MultiValueDictKeyError, self).__init__(*args, **kwargs)
+
 
 class MultiValueDict(dict):
     """
@@ -31,6 +42,10 @@ class MultiValueDict(dict):
     single name-value pairs.
     """
     def __init__(self, key_to_list_mapping=()):
+        warnings.warn("scrapy.utils.datatypes.MultiValueDict is deprecated "
+                      "and will be removed in future releases.",
+                      category=ScrapyDeprecationWarning,
+                      stacklevel=2)
         dict.__init__(self, key_to_list_mapping)
 
     def __repr__(self):