diff --git a/pkgs/development/python-modules/csvs-to-sqlite/default.nix b/pkgs/development/python-modules/csvs-to-sqlite/default.nix
new file mode 100644
index 000000000000..ab9ca9827186
--- /dev/null
+++ b/pkgs/development/python-modules/csvs-to-sqlite/default.nix
@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestrunner
+, click
+, dateparser
+, pandas
+, py-lru-cache
+, six
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "csvs-to-sqlite";
+  version = "0.9";
+
+  src = fetchFromGitHub {
+    owner = "simonw";
+    repo = pname;
+    rev = version;
+    sha256 = "0js86m4kj70g9n9gagr8l6kgswqllg6hn1xa3yvxwv95i59ihpz5";
+  };
+
+  buildInputs = [ pytestrunner ];
+
+  propagatedBuildInputs = [
+    click
+    dateparser
+    pandas
+    py-lru-cache
+    six
+  ];
+
+  checkInputs = [
+    pytest
+  ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = with lib; {
+    description = "Convert CSV files into a SQLite database";
+    homepage = https://github.com/simonw/csvs-to-sqlite;
+    license = licenses.asl20;
+    maintainers = [ maintainers.costrouc ];
+  };
+
+}
diff --git a/pkgs/development/python-modules/datasette/default.nix b/pkgs/development/python-modules/datasette/default.nix
new file mode 100644
index 000000000000..f8c66c429fe7
--- /dev/null
+++ b/pkgs/development/python-modules/datasette/default.nix
@@ -0,0 +1,73 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, click
+, click-default-group
+, sanic
+, jinja2
+, hupper
+, pint
+, pluggy
+, pytest
+, pytestrunner
+, pytest-asyncio
+, aiohttp
+, beautifulsoup4
+}:
+
+buildPythonPackage rec {
+  pname = "datasette";
+  version = "0.27";
+
+  src = fetchFromGitHub {
+    owner = "simonw";
+    repo = "datasette";
+    rev = version;
+    sha256 = "02k1kk6bw034rs74w0viwzapxz684lqgjvw5q5j5xgr0i4kynylp";
+  };
+
+  buildInputs = [ pytestrunner ];
+
+  propagatedBuildInputs = [
+    click
+    click-default-group
+    sanic
+    jinja2
+    hupper
+    pint
+    pluggy
+  ];
+
+  checkInputs = [
+    pytest
+    pytest-asyncio
+    aiohttp
+    beautifulsoup4
+  ];
+
+  postConfigure = ''
+    substituteInPlace setup.py \
+      --replace "click==6.7" "click" \
+      --replace "click-default-group==1.2" "click-default-group" \
+      --replace "Sanic==0.7.0" "Sanic" \
+      --replace "hupper==1.0" "hupper" \
+      --replace "pint==0.8.1" "pint" \
+      --replace "Jinja2==2.10" "Jinja2"
+  '';
+
+  # many tests require network access
+  checkPhase = ''
+    pytest --ignore tests/test_api.py \
+           --ignore tests/test_csv.py \
+           --ignore tests/test_html.py \
+           --ignore tests/test_publish_heroku.py
+  '';
+
+  meta = with lib; {
+    description = "An instant JSON API for your SQLite databases";
+    homepage = https://github.com/simonw/datasette;
+    license = licenses.asl20;
+    maintainers = [ maintainers.costrouc ];
+  };
+
+}
diff --git a/pkgs/development/python-modules/httptools/default.nix b/pkgs/development/python-modules/httptools/default.nix
new file mode 100644
index 000000000000..fc83675fd657
--- /dev/null
+++ b/pkgs/development/python-modules/httptools/default.nix
@@ -0,0 +1,21 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "httptools";
+  version = "0.0.13";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "e00cbd7ba01ff748e494248183abc6e153f49181169d8a3d41bb49132ca01dfc";
+  };
+
+  meta = with lib; {
+    description = "A collection of framework independent HTTP protocol utils";
+    homepage = https://github.com/MagicStack/httptools;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/py-lru-cache/default.nix b/pkgs/development/python-modules/py-lru-cache/default.nix
new file mode 100644
index 000000000000..b1d8c4f2946d
--- /dev/null
+++ b/pkgs/development/python-modules/py-lru-cache/default.nix
@@ -0,0 +1,23 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "py-lru-cache";
+  version = "0.1.4";
+
+  src = fetchPypi {
+    inherit version;
+    pname = "py_lru_cache";
+    sha256 = "1w3a8l3ckl1zz0f2vlfrawl9a402r458p7xzhy4sgq8k9rl37pq2";
+  };
+
+  meta = with lib; {
+    description = "An in-memory LRU cache for python";
+    homepage = https://github.com/stucchio/Python-LRU-cache;
+    license = licenses.gpl3;
+    maintainers = [ maintainers.costrouc ];
+  };
+
+}
diff --git a/pkgs/development/python-modules/pytest-sanic/default.nix b/pkgs/development/python-modules/pytest-sanic/default.nix
new file mode 100644
index 000000000000..c760b6a5542a
--- /dev/null
+++ b/pkgs/development/python-modules/pytest-sanic/default.nix
@@ -0,0 +1,33 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytest
+, aiohttp
+, async_generator
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-sanic";
+  version = "1.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0vlaq6p9g2p1xj9wshmin58p1faf5h9rcxvmjapx26zv8n23rnm1";
+  };
+
+  propagatedBuildInputs = [
+    pytest
+    aiohttp
+    async_generator
+  ];
+
+  # circular dependency on sanic
+  doCheck = false;
+
+  meta = with lib; {
+    description = "A pytest plugin for Sanic";
+    homepage = https://github.com/yunstanford/pytest-sanic/;
+    license = licenses.asl20;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/pytest-sugar/default.nix b/pkgs/development/python-modules/pytest-sugar/default.nix
index e8b58acd6702..5ece578dc258 100644
--- a/pkgs/development/python-modules/pytest-sugar/default.nix
+++ b/pkgs/development/python-modules/pytest-sugar/default.nix
@@ -1,4 +1,10 @@
-{ stdenv, buildPythonPackage, fetchPypi, termcolor, pytest }:
+{ lib
+, buildPythonPackage
+, fetchPypi
+, termcolor
+, pytest
+, packaging
+}:
 
 buildPythonPackage rec {
   pname = "pytest-sugar";
@@ -9,19 +15,16 @@ buildPythonPackage rec {
     sha256 = "fcd87a74b2bce5386d244b49ad60549bfbc4602527797fac167da147983f58ab";
   };
 
-  propagatedBuildInputs = [ termcolor pytest ];
+  propagatedBuildInputs = [
+    termcolor
+    pytest
+    packaging
+  ];
 
-  checkPhase = ''
-    py.test
-  '';
-
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A plugin that changes the default look and feel of py.test";
     homepage = https://github.com/Frozenball/pytest-sugar;
     license = licenses.bsd3;
-
-    # incompatible with pytest 3.5
-    # https://github.com/Frozenball/pytest-sugar/issues/134
-    broken = true; # 2018-04-20
+    maintainers = [ maintainers.costrouc ];
   };
 }
diff --git a/pkgs/development/python-modules/sanic/default.nix b/pkgs/development/python-modules/sanic/default.nix
new file mode 100644
index 000000000000..6aae4c11fdd4
--- /dev/null
+++ b/pkgs/development/python-modules/sanic/default.nix
@@ -0,0 +1,68 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, httptools
+, aiofiles
+, websockets
+, multidict
+, uvloop
+, ujson
+, pytest
+, gunicorn
+, pytestcov
+, aiohttp
+, beautifulsoup4
+, pytest-sanic
+, pytest-sugar
+, pytest-benchmark
+}:
+
+buildPythonPackage rec {
+  pname = "sanic";
+  version = "19.3.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ce434eb154872ca64493a6c3a288f11fd10bca0de7be7bf9f1d0d063185e51ec";
+  };
+
+  propagatedBuildInputs = [
+    httptools
+    aiofiles
+    websockets
+    multidict
+    uvloop
+    ujson
+  ];
+
+  checkInputs = [
+    pytest
+    gunicorn
+    pytestcov
+    aiohttp
+    beautifulsoup4
+    pytest-sanic
+    pytest-sugar
+    pytest-benchmark
+  ];
+
+  postConfigure = ''
+    substituteInPlace setup.py \
+      --replace "websockets>=6.0,<7.0" "websockets"
+  '';
+
+  # 10/500 tests ignored due to missing directory and
+  # requiring network access
+  checkPhase = ''
+    pytest --ignore tests/test_blueprints.py \
+           --ignore tests/test_routes.py \
+           --ignore tests/test_worker.py
+  '';
+
+  meta = with lib; {
+    description = "A microframework based on uvloop, httptools, and learnings of flask";
+    homepage = http://github.com/channelcat/sanic/;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/uvloop/default.nix b/pkgs/development/python-modules/uvloop/default.nix
new file mode 100644
index 000000000000..9c3dae74a79e
--- /dev/null
+++ b/pkgs/development/python-modules/uvloop/default.nix
@@ -0,0 +1,30 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pyopenssl
+, libuv
+, psutil
+, isPy27
+}:
+
+buildPythonPackage rec {
+  pname = "uvloop";
+  version = "0.12.2";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "c48692bf4587ce281d641087658eca275a5ad3b63c78297bbded96570ae9ce8f";
+  };
+
+  buildInputs = [ libuv ];
+
+  checkInputs = [ pyopenssl psutil ];
+
+  meta = with lib; {
+    description = "Fast implementation of asyncio event loop on top of libuv";
+    homepage = http://github.com/MagicStack/uvloop;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index dfcb33bfa207..5c55325fa700 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1325,6 +1325,8 @@ in
 
   csvkit = callPackage ../tools/text/csvkit { };
 
+  csvs-to-sqlite = with python3Packages; toPythonApplication csvs-to-sqlite;
+
   cucumber = callPackage ../development/tools/cucumber {};
 
   daemontools = callPackage ../tools/admin/daemontools { };
@@ -1335,6 +1337,8 @@ in
 
   datamash = callPackage ../tools/misc/datamash { };
 
+  datasette = with python3Packages; toPythonApplication datasette;
+
   datefudge = callPackage ../tools/system/datefudge { };
 
   dateutils = callPackage ../tools/misc/dateutils { };
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 21fe206501d7..2c9f6d78a5a0 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -339,6 +339,8 @@ in {
 
   datamodeldict = callPackage ../development/python-modules/datamodeldict { };
 
+  datasette = callPackage ../development/python-modules/datasette { };
+
   dbf = callPackage ../development/python-modules/dbf { };
 
   dbfread = callPackage ../development/python-modules/dbfread { };
@@ -471,6 +473,8 @@ in {
 
   httpsig = callPackage ../development/python-modules/httpsig { };
 
+  httptools = callPackage ../development/python-modules/httptools { };
+
   i3ipc = callPackage ../development/python-modules/i3ipc { };
 
   imutils = callPackage ../development/python-modules/imutils { };
@@ -659,6 +663,8 @@ in {
 
   py-cpuinfo = callPackage ../development/python-modules/py-cpuinfo { };
 
+  py-lru-cache = callPackage ../development/python-modules/py-lru-cache { };
+
   pydbus = callPackage ../development/python-modules/pydbus { };
 
   pydocstyle = callPackage ../development/python-modules/pydocstyle { };
@@ -922,6 +928,8 @@ in {
 
   unifi = callPackage ../development/python-modules/unifi { };
 
+  uvloop = callPackage ../development/python-modules/uvloop { };
+
   pyunifi = callPackage ../development/python-modules/pyunifi { };
 
   vidstab = callPackage ../development/python-modules/vidstab { };
@@ -1245,6 +1253,8 @@ in {
 
   csscompressor = callPackage ../development/python-modules/csscompressor {};
 
+  csvs-to-sqlite = callPackage ../development/python-modules/csvs-to-sqlite { };
+
   cufflinks = callPackage ../development/python-modules/cufflinks { };
 
   cupy = callPackage ../development/python-modules/cupy {
@@ -1659,6 +1669,8 @@ in {
 
   pytest-relaxed = callPackage ../development/python-modules/pytest-relaxed { };
 
+  pytest-sanic = callPackage ../development/python-modules/pytest-sanic { };
+
   pytest-flake8 = callPackage ../development/python-modules/pytest-flake8 { };
 
   pytest-flakes = callPackage ../development/python-modules/pytest-flakes { };
@@ -4646,6 +4658,8 @@ in {
 
   sandboxlib = callPackage ../development/python-modules/sandboxlib { };
 
+  sanic = callPackage ../development/python-modules/sanic { };
+
   scales = callPackage ../development/python-modules/scales { };
 
   secp256k1 = callPackage ../development/python-modules/secp256k1 {