From 1130711cc116b8902c8f743157299ee92b16ee96 Mon Sep 17 00:00:00 2001
From: Mikhail Korobov <kmike84@gmail.com>
Date: Mon, 8 Jul 2019 11:17:30 +0500
Subject: [PATCH 1/3] deprecate scrapy.utils.http

ChunkedTransferMiddleware is deprecated, so decode_chunked_transfer
can be deprecated as well.
---
 scrapy/utils/http.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/scrapy/utils/http.py b/scrapy/utils/http.py
index 7cc8d1884..b6e05c862 100644
--- a/scrapy/utils/http.py
+++ b/scrapy/utils/http.py
@@ -4,8 +4,19 @@ Transitional module for moving to the w3lib library.
 For new code, always import from w3lib.http instead of this module
 """
 
+import warnings
+
+from scrapy.exceptions import ScrapyDeprecationWarning
+from scrapy.utils.decorators import deprecated
 from w3lib.http import *
 
+
+warnings.warn("Module `scrapy.utils.http` is deprecated, "
+              "Please import from `w3lib.http` instead.",
+              ScrapyDeprecationWarning, stacklevel=2)
+
+
+@deprecated
 def decode_chunked_transfer(chunked_body):
     """Parsed body received with chunked transfer encoding, and return the
     decoded body.

From 64ff3cd6aac9009ab0fe4777224b8457b6abe790 Mon Sep 17 00:00:00 2001
From: Mikhail Korobov <kmike84@gmail.com>
Date: Mon, 8 Jul 2019 11:18:15 +0500
Subject: [PATCH 2/3] deprecate scrapy.utils.multipart

It was a shim for w3lib.form, but w3lib.form is deprecated as well.
---
 scrapy/utils/multipart.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/scrapy/utils/multipart.py b/scrapy/utils/multipart.py
index ec26c0866..c2d8afd07 100644
--- a/scrapy/utils/multipart.py
+++ b/scrapy/utils/multipart.py
@@ -3,5 +3,13 @@ Transitional module for moving to the w3lib library.
 
 For new code, always import from w3lib.form instead of this module
 """
+import warnings
 
+from scrapy.exceptions import ScrapyDeprecationWarning
 from w3lib.form import *
+
+
+warnings.warn("Module `scrapy.utils.multipart` is deprecated. "
+              "If you're using `encode_multipart` function, please use "
+              "`urllib3.filepost.encode_multipart_formdata` instead",
+              ScrapyDeprecationWarning, stacklevel=2)
\ No newline at end of file

From cb4477db3e2ac4ee1972ac3832d036a08596fa7a Mon Sep 17 00:00:00 2001
From: Mikhail Korobov <kmike84@gmail.com>
Date: Mon, 8 Jul 2019 11:18:40 +0500
Subject: [PATCH 3/3] deprecate scrapy.utils.markup

it was an import-only shim for w3lib.html
---
 scrapy/utils/markup.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scrapy/utils/markup.py b/scrapy/utils/markup.py
index 977133f4e..a18f308a3 100644
--- a/scrapy/utils/markup.py
+++ b/scrapy/utils/markup.py
@@ -3,5 +3,12 @@ Transitional module for moving to the w3lib library.
 
 For new code, always import from w3lib.html instead of this module
 """
+import warnings
 
+from scrapy.exceptions import ScrapyDeprecationWarning
 from w3lib.html import *
+
+
+warnings.warn("Module `scrapy.utils.markup` is deprecated. "
+              "Please import from `w3lib.html` instead.",
+              ScrapyDeprecationWarning, stacklevel=2)
\ No newline at end of file