diff --git a/pkgs/development/python-modules/apache-airflow/default.nix b/pkgs/development/python-modules/apache-airflow/default.nix
new file mode 100644
index 0000000000000..c15aac61b5c0a
--- /dev/null
+++ b/pkgs/development/python-modules/apache-airflow/default.nix
@@ -0,0 +1,188 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, fetchPypi
+, fetchFromGitHub
+, fetchpatch
+, alembic
+, cached-property
+, configparser
+, colorlog
+, croniter
+, dill
+, flask
+, flask-appbuilder
+, flask-admin
+, flask-caching
+, flask_login
+, flask-swagger
+, flask_wtf
+, flask-bcrypt
+, funcsigs
+, future
+, GitPython
+, gunicorn
+, iso8601
+, json-merge-patch
+, jinja2
+, ldap3
+, lxml
+, lazy-object-proxy
+, markdown
+, pandas
+, pendulum
+, psutil
+, pygments
+, python-daemon
+, python-dateutil
+, requests
+, setproctitle
+, snakebite
+, sqlalchemy
+, tabulate
+, tenacity
+, termcolor
+, text-unidecode
+, thrift
+, tzlocal
+, unicodecsv
+, werkzeug
+, zope_deprecation
+, enum34
+, typing
+, nose
+, python
+, isPy3k
+}:
+
+buildPythonPackage rec {
+  pname = "apache-airflow";
+  version = "1.10.5";
+  disabled = (!isPy3k);
+
+  src = fetchFromGitHub rec {
+    owner = "apache";
+    repo = "airflow";
+    rev = version;
+    sha256 = "14fmhfwx977c9jdb2kgm93i6acx43l45ggj30rb37r68pzpb6l6h";
+  };
+
+  patches = [
+       # Not yet accepted: https://github.com/apache/airflow/pull/6562
+     (fetchpatch {
+       name = "avoid-warning-from-abc.collections";
+       url = https://patch-diff.githubusercontent.com/raw/apache/airflow/pull/6562.patch;
+       sha256 = "0swpay1qlb7f9kgc56631s1qd9k82w4nw2ggvkm7jvxwf056k61z";
+     })
+       # Not yet accepted: https://github.com/apache/airflow/pull/6561
+     (fetchpatch {
+       name = "pendulum2-compatibility";
+       url = https://patch-diff.githubusercontent.com/raw/apache/airflow/pull/6561.patch;
+       sha256 = "17hw8qyd4zxvib9zwpbn32p99vmrdz294r31gnsbkkcl2y6h9knk";
+     })
+  ];
+
+  propagatedBuildInputs = [
+    alembic
+    cached-property
+    colorlog
+    configparser
+    croniter
+    dill
+    flask
+    flask-admin
+    flask-appbuilder
+    flask-bcrypt
+    flask-caching
+    flask_login
+    flask-swagger
+    flask_wtf
+    funcsigs
+    future
+    GitPython
+    gunicorn
+    iso8601
+    json-merge-patch
+    jinja2
+    ldap3
+    lxml
+    lazy-object-proxy
+    markdown
+    pandas
+    pendulum
+    psutil
+    pygments
+    python-daemon
+    python-dateutil
+    requests
+    setproctitle
+    sqlalchemy
+    tabulate
+    tenacity
+    termcolor
+    text-unidecode
+    thrift
+    tzlocal
+    unicodecsv
+    werkzeug
+    zope_deprecation
+  ];
+
+  checkInputs = [
+    snakebite
+    nose
+  ];
+
+  postPatch = ''
+
+   substituteInPlace setup.py \
+     --replace "flask>=1.1.0, <2.0" "flask" \
+     --replace "flask-caching>=1.3.3, <1.4.0" "flask-caching" \
+     --replace "flask-appbuilder>=1.12.5, <2.0.0" "flask-appbuilder" \
+     --replace "pendulum==1.4.4" "pendulum" \
+     --replace "cached_property~=1.5" "cached_property" \
+     --replace "dill>=0.2.2, <0.3" "dill" \
+     --replace "configparser>=3.5.0, <3.6.0" "configparser" \
+     --replace "jinja2>=2.7.3, <=2.10.0" "jinja2" \
+     --replace "funcsigs==1.0.0" "funcsigs" \
+     --replace "flask-swagger==0.2.13" "flask-swagger" \
+     --replace "python-daemon>=2.1.1, <2.2" "python-daemon" \
+     --replace "alembic>=0.9, <1.0" "alembic" \
+     --replace "markdown>=2.5.2, <3.0" "markdown" \
+     --replace "future>=0.16.0, <0.17" "future" \
+     --replace "tenacity==4.12.0" "tenacity" \
+     --replace "text-unidecode==1.2" "text-unidecode" \
+     --replace "tzlocal>=1.4,<2.0.0" "tzlocal" \
+     --replace "sqlalchemy~=1.3" "sqlalchemy" \
+     --replace "werkzeug>=0.14.1, <0.15.0" "werkzeug"
+ 
+  # dumb-init is only needed for CI and Docker, not relevant for NixOS.
+  substituteInPlace setup.py \
+     --replace "'dumb-init>=1.2.2'," ""
+
+   substituteInPlace tests/core.py \
+     --replace "/bin/bash" "${stdenv.shell}"
+  '';
+
+  checkPhase = ''
+   export HOME=$(mktemp -d)
+   export AIRFLOW_HOME=$HOME
+   export AIRFLOW__CORE__UNIT_TEST_MODE=True
+   export AIRFLOW_DB="$HOME/airflow.db"
+   export PATH=$PATH:$out/bin
+
+   airflow version
+   airflow initdb
+   airflow resetdb -y
+   nosetests tests.core.CoreTest
+   ## all tests
+   # nosetests --cover-package=airflow
+  '';
+
+  meta = with lib; {
+    description = "Programmatically author, schedule and monitor data pipelines";
+    homepage = http://airflow.apache.org/;
+    license = licenses.asl20;
+    maintainers = [ maintainers.costrouc maintainers.ingenieroariel ];
+  };
+}
diff --git a/pkgs/development/python-modules/apispec/default.nix b/pkgs/development/python-modules/apispec/default.nix
new file mode 100644
index 0000000000000..217a921a634eb
--- /dev/null
+++ b/pkgs/development/python-modules/apispec/default.nix
@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pyyaml
+, prance
+, marshmallow
+, pytestCheckHook
+, mock
+, openapi-spec-validator
+}:
+
+buildPythonPackage rec {
+  pname = "apispec";
+  version = "3.1.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0rr32z9hbf8w4w1fs5gj2v0ixcq2vq7a3wssrlxagi5ii7ygap7y";
+  };
+
+  checkInputs = [
+    pyyaml
+    prance
+    openapi-spec-validator
+    marshmallow
+    mock
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    description = "A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification";
+    homepage = https://github.com/marshmallow-code/apispec;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/croniter/default.nix b/pkgs/development/python-modules/croniter/default.nix
new file mode 100644
index 0000000000000..e262a7f164c8a
--- /dev/null
+++ b/pkgs/development/python-modules/croniter/default.nix
@@ -0,0 +1,37 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, python-dateutil
+, pytest
+, pytz
+}:
+
+buildPythonPackage rec {
+  pname = "croniter";
+  version = "0.3.30";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "538adeb3a7f7816c3cdec6db974c441620d764c25ff4ed0146ee7296b8a50590";
+  };
+
+  propagatedBuildInputs = [
+    python-dateutil
+  ];
+
+  checkInputs = [
+    pytest
+    pytz
+  ];
+
+  checkPhase = ''
+    pytest src/croniter
+  '';
+
+  meta = with lib; {
+    description = "croniter provides iteration for datetime object with cron like format";
+    homepage = http://github.com/kiorky/croniter;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/flask-admin/default.nix b/pkgs/development/python-modules/flask-admin/default.nix
new file mode 100644
index 0000000000000..3a2c1fe5e9b63
--- /dev/null
+++ b/pkgs/development/python-modules/flask-admin/default.nix
@@ -0,0 +1,71 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+, pillow
+, mongoengine
+, pymongo
+, wtf-peewee
+, sqlalchemy
+, sqlalchemy-citext
+, flask-mongoengine
+, flask_sqlalchemy
+, flask-babelex
+, shapely
+, geoalchemy2
+, psycopg2
+, flask
+, wtforms
+, isPy27
+, enum34
+}:
+
+buildPythonPackage rec {
+  pname = "flask-admin";
+  version = "1.5.3";
+
+  src = fetchPypi {
+    pname = "Flask-Admin";
+    inherit version;
+    sha256 = "ca0be6ec11a6913b73f656c65c444ae5be416c57c75638dd3199376ce6bc7422";
+  };
+
+  checkInputs = [
+    nose
+    pillow
+    mongoengine
+    pymongo
+    wtf-peewee
+    sqlalchemy
+    sqlalchemy-citext
+    flask-mongoengine
+    flask_sqlalchemy
+    flask-babelex
+    shapely
+    geoalchemy2
+    psycopg2
+  ];
+
+  propagatedBuildInputs = [
+    flask
+    wtforms
+  ] ++ lib.optionals isPy27 [ enum34 ];
+
+  checkPhase = ''
+    # disable tests that require mongodb, postresql
+    nosetests \
+     -e "mongoengine" \
+     -e "pymongo" \
+     -e "test_form_upload" \
+     -e "test_postgres" \
+     -e "geoa" \
+     flask_admin/tests
+  '';
+
+  meta = with lib; {
+    description = "Simple and extensible admin interface framework for Flask";
+    homepage = https://github.com/flask-admin/flask-admin/;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/flask-appbuilder/default.nix b/pkgs/development/python-modules/flask-appbuilder/default.nix
new file mode 100644
index 0000000000000..46841f68d60fc
--- /dev/null
+++ b/pkgs/development/python-modules/flask-appbuilder/default.nix
@@ -0,0 +1,80 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+, apispec
+, colorama
+, click
+, flask
+, flask-babel
+, flask_login
+, flask-openid
+, flask_sqlalchemy
+, flask_wtf
+, flask-jwt-extended
+, jsonschema
+, marshmallow
+, marshmallow-enum
+, marshmallow-sqlalchemy
+, python-dateutil
+, prison
+, pyjwt
+, pyyaml
+, sqlalchemy-utils
+}:
+
+buildPythonPackage rec {
+  pname = "flask-appbuilder";
+  version = "2.1.6";
+
+  src = fetchPypi {
+    pname = "Flask-AppBuilder";
+    inherit version;
+    sha256 = "a37d7d6a62407a2e0975af5305c795f2fb5c06ecc34e3cf64659d083b1b2dd5f";
+  };
+
+  checkInputs = [
+    nose
+  ];
+
+  propagatedBuildInputs = [
+    apispec
+    colorama
+    click
+    flask
+    flask-babel
+    flask_login
+    flask-openid
+    flask_sqlalchemy
+    flask_wtf
+    flask-jwt-extended
+    jsonschema
+    marshmallow
+    marshmallow-enum
+    marshmallow-sqlalchemy
+    python-dateutil
+    prison
+    pyjwt
+    sqlalchemy-utils
+    pyyaml
+  ];
+
+  postPatch = ''
+   substituteInPlace setup.py \
+     --replace "jsonschema>=3.0.1<4" "jsonschema" \
+     --replace "marshmallow>=2.18.0,<2.20" "marshmallow" \
+     --replace "PyJWT>=1.7.1" "PyJWT" \
+     --replace "Flask-SQLAlchemy>=2.4,<3" "Flask-SQLAlchemy" \
+     --replace "Flask-JWT-Extended>=3.18,<4" "Flask-JWT-Extended"
+  '';
+
+  # majority of tests require network access or mongo
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Simple and rapid application development framework, built on top of Flask";
+    homepage = https://github.com/dpgaspar/flask-appbuilder/;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/flask-babelex/default.nix b/pkgs/development/python-modules/flask-babelex/default.nix
new file mode 100644
index 0000000000000..c5968be6b8fa4
--- /dev/null
+++ b/pkgs/development/python-modules/flask-babelex/default.nix
@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, flask
+, Babel
+, speaklater
+, jinja2
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "flask-babelex";
+  version = "0.9.3";
+
+  src = fetchPypi {
+    inherit version;
+    pname = "Flask-BabelEx";
+    sha256 = "cf79cdedb5ce860166120136b0e059e9d97b8df07a3bc2411f6243de04b754b4";
+  };
+
+  propagatedBuildInputs = [
+    flask
+    Babel
+    speaklater
+    jinja2
+  ];
+
+  checkInputs = [
+    pytest
+  ];
+
+  checkPhase = ''
+    # Disabled 3 tests failing due to string representations of dates:
+    # Like "12. April 2010 um 15:46:00 MESZ" != 12. "April 2010 15:46:00 MESZ"
+
+    pytest tests/tests.py -k "not test_init_app \
+                              and not test_custom_locale_selector \
+                              and not test_basics"
+  '';
+
+  meta = with lib; {
+    description = "Adds i18n/l10n support to Flask applications";
+    homepage = http://github.com/mrjoes/flask-babelex;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/flask-bcrypt/default.nix b/pkgs/development/python-modules/flask-bcrypt/default.nix
new file mode 100644
index 0000000000000..dfcdad18f9c6b
--- /dev/null
+++ b/pkgs/development/python-modules/flask-bcrypt/default.nix
@@ -0,0 +1,35 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, flask
+, bcrypt
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "flask-bcrypt";
+  version = "0.7.1";
+
+  src = fetchFromGitHub {
+    owner = "maxcountryman";
+    repo = pname;
+    rev = version;
+    sha256 = "0036gag3nj7fzib23lbbpwhlrn1s0kkrfwk5pd90y4cjcfqh8z9x";
+  };
+
+  propagatedBuildInputs = [
+    flask
+    bcrypt
+  ];
+
+  checkPhase = ''
+    ${python.interpreter} test_bcrypt.py
+  '';
+
+  meta = with lib; {
+    description = "Brcrypt hashing for Flask";
+    homepage = https://github.com/maxcountryman/flask-bcrypt;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/flask-mongoengine/default.nix b/pkgs/development/python-modules/flask-mongoengine/default.nix
new file mode 100644
index 0000000000000..5e61a2415b7c1
--- /dev/null
+++ b/pkgs/development/python-modules/flask-mongoengine/default.nix
@@ -0,0 +1,47 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, flask
+, flask_wtf
+, mongoengine
+, six
+, nose
+, rednose
+, coverage
+}:
+
+buildPythonPackage rec {
+  pname = "flask-mongoengine";
+  version = "0.9.5";
+
+  src = fetchFromGitHub {
+    owner = "MongoEngine";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "05hfddf1dm594wnjyqhj0zmjfsf1kpmx1frjwhypgzx4hf62qcmr";
+  };
+
+  propagatedBuildInputs = [
+    flask
+    flask_wtf
+    mongoengine
+    six
+  ];
+
+  # they set test requirements to setup_requirements...
+  buildInputs = [
+    nose
+    rednose
+    coverage
+  ];
+
+  # tests require working mongodb connection
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Flask-MongoEngine is a Flask extension that provides integration with MongoEngine and WTF model forms";
+    homepage = https://github.com/mongoengine/flask-mongoengine;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/flask-openid/default.nix b/pkgs/development/python-modules/flask-openid/default.nix
new file mode 100644
index 0000000000000..ad5001636095b
--- /dev/null
+++ b/pkgs/development/python-modules/flask-openid/default.nix
@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, flask
+, python3-openid
+, isPy3k
+}:
+
+buildPythonPackage rec {
+  pname = "flask-openid";
+  version = "1.2.5";
+  disable = !isPy3k;
+
+  src = fetchPypi {
+    pname = "Flask-OpenID";
+    inherit version;
+    sha256 = "5a8ffe1c8c0ad1cc1f5030e1223ea27f8861ee0215a2a58a528cc61379e5ccab";
+  };
+
+  propagatedBuildInputs = [
+    flask
+    python3-openid
+  ];
+
+  # no tests for repo...
+  doCheck = false;
+
+  meta = with lib; {
+    description = "OpenID support for Flask";
+    homepage = http://github.com/mitsuhiko/flask-openid/;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/json-merge-patch/default.nix b/pkgs/development/python-modules/json-merge-patch/default.nix
new file mode 100644
index 0000000000000..b0bc2a835c412
--- /dev/null
+++ b/pkgs/development/python-modules/json-merge-patch/default.nix
@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, fetchpatch
+}:
+
+buildPythonPackage rec {
+  pname = "json-merge-patch";
+  version = "0.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "09898b6d427c08754e2a97c709cf2dfd7e28bd10c5683a538914975eab778d39";
+  };
+
+  patches = [
+    # This prevented tests from running (was using a relative import)
+    # https://github.com/OpenDataServices/json-merge-patch/pull/1
+   (fetchpatch {
+     name = "fully-qualified-json-merge-patch-import-on-tests";
+     url = https://patch-diff.githubusercontent.com/raw/OpenDataServices/json-merge-patch/pull/1.patch;
+     sha256 = "1k6xsrxsmz03nwcqsf4gf0zsfnl2r20n83npic8z6bqlpl4lidl4";
+   })
+  ];
+
+  meta = with lib; {
+    description = "JSON Merge Patch library";
+    homepage = https://github.com/open-contracting/json-merge-patch;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/marshmallow-enum/default.nix b/pkgs/development/python-modules/marshmallow-enum/default.nix
new file mode 100644
index 0000000000000..9d68e66c91ab4
--- /dev/null
+++ b/pkgs/development/python-modules/marshmallow-enum/default.nix
@@ -0,0 +1,42 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, marshmallow
+, pytestCheckHook
+, isPy27
+, enum34
+, pytest-flake8
+}:
+
+buildPythonPackage rec {
+  pname = "marshmallow-enum";
+  version = "1.5.1";
+
+  src = fetchFromGitHub {
+    owner = "justanr";
+    repo = "marshmallow_enum";
+    rev = "v${version}";
+    sha256 = "1ihrcmyfjabivg6hc44i59hnw5ijlg1byv3zs1rqxfynp8xr7398";
+  };
+
+  propagatedBuildInputs = [
+    marshmallow
+  ] ++ lib.optionals isPy27 [ enum34 ];
+
+  checkInputs = [
+    pytestCheckHook
+    pytest-flake8
+  ];
+
+  disabledTests = [
+    "test_custom_error_in_deserialize_by_name"
+    "test_custom_error_in_deserialize_by_value"
+  ];
+
+  meta = with lib; {
+    description = "Enum field for Marshmallow";
+    homepage = https://github.com/justanr/marshmallow_enum;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/mongoengine/default.nix b/pkgs/development/python-modules/mongoengine/default.nix
new file mode 100644
index 0000000000000..db20d9442ef10
--- /dev/null
+++ b/pkgs/development/python-modules/mongoengine/default.nix
@@ -0,0 +1,49 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pymongo
+, six
+, blinker
+, nose
+, pillow
+, coverage
+}:
+
+buildPythonPackage rec {
+  pname = "mongoengine";
+  version = "0.18.2";
+
+  src = fetchFromGitHub {
+    owner = "MongoEngine";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0gx091h9rcykdj233srrl3dfc0ly52p6r4qc9ah6z0f694kmqj1v";
+  };
+
+  propagatedBuildInputs = [
+    pymongo
+    six
+  ];
+
+  checkInputs = [
+    nose
+    pillow
+    coverage
+    blinker
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "coverage==4.2" "coverage"
+  '';
+
+  # tests require mongodb running in background
+  doCheck = false;
+
+  meta = with lib; {
+    description = "MongoEngine is a Python Object-Document Mapper for working with MongoDB";
+    homepage = http://mongoengine.org/;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/prance/default.nix b/pkgs/development/python-modules/prance/default.nix
new file mode 100644
index 0000000000000..38133172ecf79
--- /dev/null
+++ b/pkgs/development/python-modules/prance/default.nix
@@ -0,0 +1,57 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, chardet
+, pyyaml
+, requests
+, six
+, semver
+, pytest
+, pytestcov
+, pytestrunner
+, sphinx
+, openapi-spec-validator
+}:
+
+buildPythonPackage rec {
+  pname = "prance";
+  version = "0.15.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "793f96dc8bba73bf4342f57b3570f5e0a94c30e60f0c802a2aaa302759dd8610";
+  };
+
+  buildInputs = [
+    pytestrunner
+  ];
+
+  propagatedBuildInputs = [
+    chardet
+    pyyaml
+    requests
+    six
+    semver
+  ];
+
+  checkInputs = [
+    pytest
+    pytestcov
+    openapi-spec-validator
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "tests_require = dev_require," "tests_require = None,"
+  '';
+
+  # many tests require network connection
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Resolving Swagger/OpenAPI 2.0 and 3.0.0 Parser";
+    homepage = https://github.com/jfinkhaeuser/prance;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/prison/default.nix b/pkgs/development/python-modules/prison/default.nix
new file mode 100644
index 0000000000000..4993976b51df8
--- /dev/null
+++ b/pkgs/development/python-modules/prison/default.nix
@@ -0,0 +1,33 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, six
+, nose
+}:
+
+buildPythonPackage rec {
+  pname = "prison";
+  version = "0.1.2";
+
+  src = fetchFromGitHub {
+    owner = "betodealmeida";
+    repo = "python-rison";
+    rev = version;
+    sha256 = "14vb468iznf9416z993bbqihywp9ibyslw5vp67wfr200zyxjwak";
+  };
+
+  propagatedBuildInputs = [
+    six
+  ];
+
+  checkInputs = [
+    nose
+  ];
+
+  meta = with lib; {
+    description = "Rison encoder/decoder";
+    homepage = https://github.com/betodealmeida/python-rison;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/snakebite/default.nix b/pkgs/development/python-modules/snakebite/default.nix
new file mode 100644
index 0000000000000..1d08570d72762
--- /dev/null
+++ b/pkgs/development/python-modules/snakebite/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, tox
+, virtualenv
+, protobuf
+}:
+
+buildPythonPackage rec {
+  pname = "snakebite";
+  version = "2.11.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "085238b4944cb9c658ee62d5794de936ac3d0c337c504b2cc86424a205ae978a";
+  };
+
+  checkInputs = [
+    tox
+    virtualenv
+  ];
+
+  propagatedBuildInputs = [
+    protobuf
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "'argparse'" ""
+  '';
+
+  # tests require hadoop hdfs
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Pure Python HDFS client";
+    homepage = http://github.com/spotify/snakebite;
+    license = licenses.asl20;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/sqlalchemy-citext/default.nix b/pkgs/development/python-modules/sqlalchemy-citext/default.nix
new file mode 100644
index 0000000000000..b91e338540431
--- /dev/null
+++ b/pkgs/development/python-modules/sqlalchemy-citext/default.nix
@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, sqlalchemy
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "sqlalchemy-citext";
+  version = "1.3-0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "7d7343037a35153d6f94c3c2f6baf391f88a57651c3bde5d6749d216859ae4c5";
+  };
+
+  propagatedBuildInputs = [
+    sqlalchemy
+  ];
+
+  checkPhase = ''
+    ${python.interpreter} tests/test_citext.py
+  '';
+
+  meta = with lib; {
+    description = "A sqlalchemy plugin that allows postgres use of CITEXT";
+    homepage = https://github.com/mahmoudimus/sqlalchemy-citext;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/wtf-peewee/default.nix b/pkgs/development/python-modules/wtf-peewee/default.nix
new file mode 100644
index 0000000000000..a01aaa4631af2
--- /dev/null
+++ b/pkgs/development/python-modules/wtf-peewee/default.nix
@@ -0,0 +1,33 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, peewee
+, wtforms
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "wtf-peewee";
+  version = "3.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "acd05d136c8595da3327fcf9176fa85fdcec1f2aac51d235e46e6fc7a0871283";
+  };
+
+  propagatedBuildInputs = [
+    peewee
+    wtforms
+  ];
+
+  checkPhase = ''
+    ${python.interpreter} runtests.py
+  '';
+
+  meta = with lib; {
+    description = "WTForms integration for peewee models";
+    homepage = https://github.com/coleifer/wtf-peewee/;
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0be07adc109f2..c1af52046f320 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -559,6 +559,8 @@ in
 
   airfield = callPackage ../tools/networking/airfield { };
 
+  apache-airflow = with python3.pkgs; toPythonApplication apache-airflow;
+
   airsonic = callPackage ../servers/misc/airsonic { };
 
   airspy = callPackage ../applications/radio/airspy { };
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f61ca230c0755..9c2159bab59ce 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1434,8 +1434,12 @@ in {
 
   antlr4-python3-runtime = callPackage ../development/python-modules/antlr4-python3-runtime { antlr4 = pkgs.antlr4; };
 
+  apache-airflow = callPackage ../development/python-modules/apache-airflow { };
+
   apipkg = callPackage ../development/python-modules/apipkg {};
 
+  apispec = callPackage ../development/python-modules/apispec {};
+
   appdirs = callPackage ../development/python-modules/appdirs { };
 
   appleseed = disabledIf isPy3k
@@ -1671,6 +1675,8 @@ in {
 
   crc16 = callPackage ../development/python-modules/crc16 { };
 
+  croniter = callPackage ../development/python-modules/croniter { };
+
   csscompressor = callPackage ../development/python-modules/csscompressor {};
 
   csvs-to-sqlite = callPackage ../development/python-modules/csvs-to-sqlite { };
@@ -1972,6 +1978,8 @@ in {
 
   jsonlines = callPackage ../development/python-modules/jsonlines { };
 
+  json-merge-patch = callPackage ../development/python-modules/json-merge-patch { };
+
   jsonrpc-async = callPackage ../development/python-modules/jsonrpc-async { };
 
   jsonrpc-base = callPackage ../development/python-modules/jsonrpc-base { };
@@ -3191,6 +3199,10 @@ in {
 
   flask = callPackage ../development/python-modules/flask { };
 
+  flask-admin = callPackage ../development/python-modules/flask-admin { };
+
+  flask-appbuilder = callPackage ../development/python-modules/flask-appbuilder { };
+
   flask-api = callPackage ../development/python-modules/flask-api { };
 
   flask_assets = callPackage ../development/python-modules/flask-assets { };
@@ -3199,6 +3211,10 @@ in {
 
   flask-babel = callPackage ../development/python-modules/flask-babel { };
 
+  flask-babelex = callPackage ../development/python-modules/flask-babelex { };
+
+  flask-bcrypt = callPackage ../development/python-modules/flask-bcrypt { };
+
   flask-bootstrap = callPackage ../development/python-modules/flask-bootstrap { };
 
   flask-caching = callPackage ../development/python-modules/flask-caching { };
@@ -3225,6 +3241,10 @@ in {
 
   flask_migrate = callPackage ../development/python-modules/flask-migrate { };
 
+  flask-mongoengine = callPackage ../development/python-modules/flask-mongoengine { };
+
+  flask-openid = callPackage ../development/python-modules/flask-openid { };
+
   flask-paginate = callPackage ../development/python-modules/flask-paginate { };
 
   flask_principal = callPackage ../development/python-modules/flask-principal { };
@@ -3251,6 +3271,8 @@ in {
 
   wtforms = callPackage ../development/python-modules/wtforms { };
 
+  wtf-peewee = callPackage ../development/python-modules/wtf-peewee { };
+
   graph-tool = callPackage ../development/python-modules/graph-tool/2.x.x.nix {
     inherit (pkgs) pkgconfig;
   };
@@ -3822,6 +3844,8 @@ in {
 
   marshmallow = callPackage ../development/python-modules/marshmallow { };
 
+  marshmallow-enum = callPackage ../development/python-modules/marshmallow-enum { };
+
   marshmallow-sqlalchemy = callPackage ../development/python-modules/marshmallow-sqlalchemy { };
 
   manuel = callPackage ../development/python-modules/manuel { };
@@ -4415,6 +4439,8 @@ in {
 
   praw = if isPy3k then callPackage ../development/python-modules/praw { }
     else callPackage ../development/python-modules/praw/6.3.nix { };
+  
+  prance = callPackage ../development/python-modules/prance { };
 
   prawcore = callPackage ../development/python-modules/prawcore { };
 
@@ -4474,6 +4500,8 @@ in {
 
   mongodict = callPackage ../development/python-modules/mongodict { };
 
+  mongoengine = callPackage ../development/python-modules/mongoengine { };
+
   repoze_who = callPackage ../development/python-modules/repoze_who { };
 
   vobject = callPackage ../development/python-modules/vobject { };
@@ -5119,6 +5147,8 @@ in {
 
   sqlalchemy = callPackage ../development/python-modules/sqlalchemy { };
 
+  sqlalchemy-citext = callPackage ../development/python-modules/sqlalchemy-citext { };
+
   sqlalchemy_migrate = callPackage ../development/python-modules/sqlalchemy-migrate { };
 
   sqlalchemy-utils = callPackage ../development/python-modules/sqlalchemy-utils { };
@@ -5835,6 +5865,8 @@ in {
 
   toposort = callPackage ../development/python-modules/toposort { };
 
+  snakebite = callPackage ../development/python-modules/snakebite { };
+
   snapperGUI = callPackage ../development/python-modules/snappergui { };
 
   dm-sonnet = callPackage ../development/python-modules/dm-sonnet { };
@@ -6195,6 +6227,8 @@ in {
 
   preggy = callPackage ../development/python-modules/preggy { };
 
+  prison = callPackage ../development/python-modules/prison { };
+
   pytoml = callPackage ../development/python-modules/pytoml { };
 
   pypandoc = callPackage ../development/python-modules/pypandoc { };