From 2f8a231e1774436a8d6db614da784f762aa8d6e5 Mon Sep 17 00:00:00 2001
From: iceboy <me@iceboy.org>
Date: Mon, 3 Apr 2017 20:52:50 -0700
Subject: [PATCH] keep blank values while parsing form (#1765)

---
 CHANGES.rst                  | 6 ++++++
 CONTRIBUTORS.txt             | 1 +
 aiohttp/web_request.py       | 1 +
 tests/test_web_functional.py | 4 ++--
 4 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 183cad920b5..ae22cd3d395 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@ Changes
 =======
 
 
+2.0.6 (2017-04-xx)
+------------------
+
+- Keeping blank values for `request.post()` #1765
+
+
 2.0.5 (2017-03-29)
 ------------------
 
diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index c16001c71b1..773c8ebb9ca 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -93,6 +93,7 @@ Kirill Malovitsa
 Kyrylo Perevozchikov
 Lars P. Søndergaard
 Louis-Philippe Huberdeau
+Lu Gong
 Lubomir Gelo
 Ludovic Gasc
 Lukasz Marcin Dobrzanski
diff --git a/aiohttp/web_request.py b/aiohttp/web_request.py
index e82b587574c..9f4ce494976 100644
--- a/aiohttp/web_request.py
+++ b/aiohttp/web_request.py
@@ -427,6 +427,7 @@ def post(self):
                 out.extend(
                     parse_qsl(
                         data.rstrip().decode(charset),
+                        keep_blank_values=True,
                         encoding=charset))
 
         self._post = MultiDictProxy(out)
diff --git a/tests/test_web_functional.py b/tests/test_web_functional.py
index 27dd227b66d..053a68c0f14 100644
--- a/tests/test_web_functional.py
+++ b/tests/test_web_functional.py
@@ -127,14 +127,14 @@ def test_post_form(loop, test_client):
     @asyncio.coroutine
     def handler(request):
         data = yield from request.post()
-        assert {'a': '1', 'b': '2'} == data
+        assert {'a': '1', 'b': '2', 'c': ''} == data
         return web.Response(body=b'OK')
 
     app = web.Application()
     app.router.add_post('/', handler)
     client = yield from test_client(app)
 
-    resp = yield from client.post('/', data={'a': 1, 'b': 2})
+    resp = yield from client.post('/', data={'a': 1, 'b': 2, 'c': ''})
     assert 200 == resp.status
     txt = yield from resp.text()
     assert 'OK' == txt