diff --git a/pkgs/development/python-modules/cassandra-driver/default.nix b/pkgs/development/python-modules/cassandra-driver/default.nix
index e1cb9f211bc2..215b3b7ac6c2 100644
--- a/pkgs/development/python-modules/cassandra-driver/default.nix
+++ b/pkgs/development/python-modules/cassandra-driver/default.nix
@@ -1,47 +1,85 @@
-{ lib, buildPythonPackage, fetchPypi, python, pythonOlder
+{ stdenv, lib, buildPythonPackage, fetchFromGitHub, python, pythonOlder
 , cython
 , eventlet
 , futures
+, iana-etc
+, geomet
 , libev
 , mock
 , nose
-, pytest
+, pytestCheckHook
 , pytz
 , pyyaml
 , scales
 , six
 , sure
+, gremlinpython
+, gevent
+, twisted
+, libredirect
 }:
 
 buildPythonPackage rec {
   pname = "cassandra-driver";
   version = "3.24.0";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "83ec8d9a5827ee44bb1c0601a63696a8a9086beaf0151c8255556299246081bd";
+  # pypi tarball doesn't include tests
+  src = fetchFromGitHub {
+    owner = "datastax";
+    repo = "python-driver";
+    rev = version;
+    sha256 = "1rr69hly5q810xpn8rkzxwzlq55wxxp7kwki9vfri3gh674d2wip";
   };
 
   nativeBuildInputs = [ cython ];
   buildInputs = [ libev ];
-  propagatedBuildInputs = [ six ]
+  propagatedBuildInputs = [ six geomet ]
     ++ lib.optionals (pythonOlder "3.4") [ futures ];
 
-  checkInputs = [ eventlet mock nose pytest pytz pyyaml sure ];
-
-  # ignore test files which try to do socket.getprotocolname('tcp')
-  # as it fails in sandbox mode due to lack of a /etc/protocols file
-  checkPhase = ''
-    pytest tests/unit \
-      --ignore=tests/unit/io/test_libevreactor.py \
-      --ignore=tests/unit/io/test_eventletreactor.py \
-      --ignore=tests/unit/io/test_asyncorereactor.py
+  # Make /etc/protocols accessible to allow socket.getprotobyname('tcp') in sandbox,
+  # also /etc/resolv.conf is referenced by some tests
+  preCheck = (stdenv.lib.optionalString stdenv.isLinux ''
+    echo "nameserver 127.0.0.1" > resolv.conf
+    export NIX_REDIRECTS=/etc/protocols=${iana-etc}/etc/protocols:/etc/resolv.conf=$(realpath resolv.conf)
+    export LD_PRELOAD=${libredirect}/lib/libredirect.so
+  '') + ''
+    # increase tolerance for time-based test
+    substituteInPlace tests/unit/io/utils.py --replace 'delta=.15' 'delta=.3'
   '';
+  postCheck = ''
+    unset NIX_REDIRECTS LD_PRELOAD
+  '';
+
+  checkInputs = [
+    pytestCheckHook
+    eventlet
+    mock
+    nose
+    pytz
+    pyyaml
+    sure
+    scales
+    gremlinpython
+    gevent
+    twisted
+  ];
+
+  pytestFlagsArray = [
+    "tests/unit"
+    # requires puresasl
+    "--ignore=tests/unit/advanced/test_auth.py"
+  ];
+  disabledTests = [
+    # doesn't seem to be intended to be run directly
+    "_PoolTests"
+    # attempts to make connection to localhost
+    "test_connection_initialization"
+  ];
 
   meta = with lib; {
     description = "A Python client driver for Apache Cassandra";
     homepage = "http://datastax.github.io/python-driver";
     license = licenses.asl20;
-    broken = true; # geomet doesn't exist
+    maintainers = with maintainers; [ turion ris ];
   };
 }
diff --git a/pkgs/development/python-modules/geomet/default.nix b/pkgs/development/python-modules/geomet/default.nix
new file mode 100644
index 000000000000..a4df450098df
--- /dev/null
+++ b/pkgs/development/python-modules/geomet/default.nix
@@ -0,0 +1,37 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, fetchpatch
+, click
+, six
+}:
+
+buildPythonPackage rec {
+  pname = "geomet";
+  version = "0.2.1";
+
+  # pypi tarball doesn't include tests
+  src = fetchFromGitHub {
+    owner = "geomet";
+    repo = "geomet";
+    rev = version;
+    sha256 = "0fdi26glsmrsyqk86rnsfcqw79svn2b0ikdv89pq98ihrpwhn85y";
+  };
+
+  patches = [
+    (fetchpatch {
+      name = "python-3.8-support.patch";
+      url = "https://github.com/geomet/geomet/commit/dc4cb4a856d3ad814b57b4b7487d86d9e0f0fad4.patch";
+      sha256 = "1f1cdfqyp3z01jdjvax77219l3gc75glywqrisqpd2k0m0g7fwh3";
+    })
+  ];
+
+  propagatedBuildInputs = [ click six ];
+
+  meta = with lib; {
+    homepage = "https://github.com/geomet/geomet";
+    license = licenses.asl20;
+    description = "Convert GeoJSON to WKT/WKB (Well-Known Text/Binary), and vice versa.";
+    maintainers = with maintainers; [ turion ris ];
+  };
+}
diff --git a/pkgs/development/python-modules/gremlinpython/default.nix b/pkgs/development/python-modules/gremlinpython/default.nix
new file mode 100644
index 000000000000..97d169283b23
--- /dev/null
+++ b/pkgs/development/python-modules/gremlinpython/default.nix
@@ -0,0 +1,54 @@
+{ stdenv, lib, buildPythonPackage, fetchFromGitHub, python, pythonOlder
+, pytestCheckHook, pyhamcrest, pytestrunner, pytest
+, six, isodate, tornado, aenum, radish-bdd, mock
+}:
+
+buildPythonPackage rec {
+  pname = "gremlinpython";
+  version = "3.4.8";
+
+  # pypi tarball doesn't include tests
+  src = fetchFromGitHub {
+    owner = "apache";
+    repo = "tinkerpop";
+    rev = version;
+    sha256 = "0kcyhfxz7z4f8i64gig8q1q9dhy24cprbh63vwsdiwryg74q4chl";
+  };
+  sourceRoot = "source/gremlin-python/src/main/jython";
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace 'tornado>=4.4.1,<6.0' 'tornado' \
+      --replace 'PyHamcrest>=1.9.0,<2.0.0' 'PyHamcrest' \
+      --replace 'radish-bdd==0.8.6' 'radish-bdd' \
+      --replace 'mock>=3.0.5,<4.0.0' 'mock' \
+      --replace 'pytest>=4.6.4,<5.0.0' 'pytest'
+  '';
+
+  nativeBuildInputs = [ pytestrunner ];  # simply to placate requirements
+  propagatedBuildInputs = [ six isodate tornado aenum ];
+
+  checkInputs = [ pytestCheckHook pyhamcrest radish-bdd mock ];
+
+  # disable custom pytest report generation
+  preCheck = ''
+    substituteInPlace setup.cfg --replace 'addopts' '#addopts'
+  '';
+
+  # many tests expect a running tinkerpop server
+  pytestFlagsArray = [
+    "--ignore=tests/driver/test_client.py"
+    "--ignore=tests/driver/test_driver_remote_connection.py"
+    "--ignore=tests/driver/test_driver_remote_connection_threaded.py"
+    "--ignore=tests/process/test_dsl.py"
+    "--ignore=tests/structure/io/test_functionalityio.py"
+    # disabledTests doesn't quite allow us to be precise enough for this
+    "-k 'not (TestFunctionalGraphSONIO and (test_timestamp or test_datetime or test_uuid))'"
+  ];
+
+  meta = with lib; {
+    description = "Gremlin-Python implements Gremlin, the graph traversal language of Apache TinkerPop, within the Python language";
+    homepage = "https://tinkerpop.apache.org/";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ turion ris ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 852cfd2543ff..c612cb9cde16 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2526,6 +2526,8 @@ in {
 
   geojson-client = callPackage ../development/python-modules/geojson-client { };
 
+  geomet = callPackage ../development/python-modules/geomet { };
+
   geopandas = callPackage ../development/python-modules/geopandas { };
 
   geopy = if isPy3k then
@@ -2793,6 +2795,8 @@ in {
 
   grequests = callPackage ../development/python-modules/grequests { };
 
+  gremlinpython = callPackage ../development/python-modules/gremlinpython { };
+
   grib-api = disabledIf (!isPy27) (toPythonModule (pkgs.grib-api.override {
     enablePython = true;
     pythonPackages = self;