diff --git a/pkgs/development/python-modules/aioamqp/default.nix b/pkgs/development/python-modules/aioamqp/default.nix
index d7cd453c93d5..8488278c934b 100644
--- a/pkgs/development/python-modules/aioamqp/default.nix
+++ b/pkgs/development/python-modules/aioamqp/default.nix
@@ -1,5 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, isPy33, pythonOlder,
-  asyncio
+{ lib, buildPythonPackage, fetchPypi, pythonOlder,
 }:
 
 buildPythonPackage rec {
@@ -17,7 +16,5 @@ buildPythonPackage rec {
     sha256 = "17vrl6jajr81bql7kjgq0zkxy225px97z4g9wmbhbbnvzn1p92c0";
   };
 
-  buildInputs = lib.optionals isPy33 [ asyncio ];
-
   disabled = pythonOlder "3.3";
 }
diff --git a/pkgs/development/python-modules/aiodns/default.nix b/pkgs/development/python-modules/aiodns/default.nix
index f7ac236a520d..0edbb2129f33 100644
--- a/pkgs/development/python-modules/aiodns/default.nix
+++ b/pkgs/development/python-modules/aiodns/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, fetchPypi
-, isPy33, isPy27, isPyPy, python, pycares, typing, asyncio, trollius }:
+, isPy27, isPyPy, python, pycares, typing, trollius }:
 
 buildPythonPackage rec {
   pname = "aiodns";
diff --git a/pkgs/development/python-modules/aioeventlet/default.nix b/pkgs/development/python-modules/aioeventlet/default.nix
index f137484a8247..ccac3e6f0773 100644
--- a/pkgs/development/python-modules/aioeventlet/default.nix
+++ b/pkgs/development/python-modules/aioeventlet/default.nix
@@ -3,21 +3,21 @@
 , fetchPypi
 , eventlet
 , trollius
-, asyncio
 , mock
 , python
 }:
 
 buildPythonPackage rec {
   pname = "aioeventlet";
-  version = "0.5.1";
+  # version is called 0.5.1 on PyPI, but the filename is aioeventlet-0.5.2.tar.gz
+  version = "0.5.2";
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "cecb51ea220209e33b53cfb95124d90e4fcbee3ff8ba8a179a57120b8624b16a";
   };
 
-  propagatedBuildInputs = [ eventlet trollius asyncio ];
+  propagatedBuildInputs = [ eventlet trollius ];
   buildInputs = [ mock ];
 
   # 2 tests error out
diff --git a/pkgs/development/python-modules/aiofiles/default.nix b/pkgs/development/python-modules/aiofiles/default.nix
index 55d68f93f2c7..4728d819f05a 100644
--- a/pkgs/development/python-modules/aiofiles/default.nix
+++ b/pkgs/development/python-modules/aiofiles/default.nix
@@ -1,10 +1,7 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, isPy33
 , pythonOlder
-, asyncio
-, singledispatch
 }:
 
 buildPythonPackage rec {
@@ -18,8 +15,6 @@ buildPythonPackage rec {
 
   disabled = pythonOlder "3.3";
 
-  propagatedBuildInputs = lib.optionals isPy33 [ asyncio singledispatch ];
-
   # No tests in archive
   doCheck = false;
 
diff --git a/pkgs/development/python-modules/asyncio/default.nix b/pkgs/development/python-modules/asyncio/default.nix
deleted file mode 100644
index 5a6dbe798148..000000000000
--- a/pkgs/development/python-modules/asyncio/default.nix
+++ /dev/null
@@ -1,18 +0,0 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy34 }:
-
-buildPythonPackage rec {
-  pname = "asyncio";
-  version = "3.4.3";
-  disabled = !isPy34;
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "0hfbqwk9y0bbfgxzg93s2wyk6gcjsdxlr5jwy97hx64ppkw0ydl3";
-  };
-
-  meta = with stdenv.lib; {
-    description = "Reference implementation of PEP 3156";
-    homepage = http://www.python.org/dev/peps/pep-3156;
-    license = licenses.free;
-  };
-}
diff --git a/pkgs/development/python-modules/autobahn/default.nix b/pkgs/development/python-modules/autobahn/default.nix
index d2d1e48b4c62..0ccf3da7bec9 100644
--- a/pkgs/development/python-modules/autobahn/default.nix
+++ b/pkgs/development/python-modules/autobahn/default.nix
@@ -1,5 +1,5 @@
-{ lib, buildPythonPackage, fetchPypi, isPy3k, isPy33,
-  six, txaio, twisted, zope_interface, cffi, asyncio, trollius, futures,
+{ lib, buildPythonPackage, fetchPypi, isPy3k,
+  six, txaio, twisted, zope_interface, cffi, trollius, futures,
   mock, pytest
 }:
 buildPythonPackage rec {
@@ -12,7 +12,6 @@ buildPythonPackage rec {
   };
 
   propagatedBuildInputs = [ six txaio twisted zope_interface cffi ] ++
-    (lib.optional isPy33 asyncio) ++
     (lib.optionals (!isPy3k) [ trollius futures ]);
 
   checkInputs = [ mock pytest ];
diff --git a/pkgs/development/python-modules/discordpy/default.nix b/pkgs/development/python-modules/discordpy/default.nix
index e548781fde62..41188a0de6e5 100644
--- a/pkgs/development/python-modules/discordpy/default.nix
+++ b/pkgs/development/python-modules/discordpy/default.nix
@@ -3,7 +3,6 @@
 , buildPythonPackage
 , pythonOlder
 , withVoice ? true, libopus
-, asyncio
 , aiohttp
 , websockets
 , pynacl
@@ -18,7 +17,7 @@ buildPythonPackage rec {
     sha256 = "17fb8814100fbaf7a79468baa432184db6cef3bbea4ad194fe297c7407d50108";
   };
 
-  propagatedBuildInputs = [ asyncio aiohttp websockets pynacl ];
+  propagatedBuildInputs = [ aiohttp websockets pynacl ];
   patchPhase = ''
     substituteInPlace "requirements.txt" \
       --replace "aiohttp>=1.0.0,<1.1.0" "aiohttp"
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5544dca851d4..770ca8b3d0cb 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -997,8 +997,6 @@ in {
 
   astor = callPackage ../development/python-modules/astor {};
 
-  asyncio = callPackage ../development/python-modules/asyncio {};
-
   asyncssh = callPackage ../development/python-modules/asyncssh { };
 
   python-fontconfig = callPackage ../development/python-modules/python-fontconfig { };