diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 5406d49cd69d..f98b9cedfa3c 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -6622,6 +6622,12 @@
     githubId = 4656860;
     name = "Gaute Ravndal";
   };
+  gray-heron = {
+    email = "ave+nix@cezar.info";
+    github = "gray-heron";
+    githubId = 7032646;
+    name = "Cezary Siwek";
+  };
   graysonhead = {
     email = "grayson@graysonhead.net";
     github = "graysonhead";
diff --git a/pkgs/development/python-modules/cantools/default.nix b/pkgs/development/python-modules/cantools/default.nix
new file mode 100644
index 000000000000..3cb260dd8d1b
--- /dev/null
+++ b/pkgs/development/python-modules/cantools/default.nix
@@ -0,0 +1,58 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, setuptools-scm
+, argparse-addons
+, bitstruct
+, can
+, crccheck
+, diskcache
+, matplotlib
+, parameterized
+, pytestCheckHook
+, pythonOlder
+, textparser
+}:
+
+buildPythonPackage rec {
+  pname = "cantools";
+  version = "38.0.2";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-k7/m9L1lLzaXY+qRYrAnpi9CSoQA8kI9QRN5GM5oxo4=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    argparse-addons
+    bitstruct
+    can
+    crccheck
+    diskcache
+    matplotlib
+    textparser
+  ];
+
+  nativeCheckInputs = [
+    parameterized
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "cantools"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/cantools/cantools";
+    description = "CAN bus tools.";
+    license = licenses.mit;
+    maintainers = with maintainers; [ gray-heron ];
+  };
+}
diff --git a/pkgs/development/python-modules/textparser/default.nix b/pkgs/development/python-modules/textparser/default.nix
new file mode 100644
index 000000000000..86c436ac21f9
--- /dev/null
+++ b/pkgs/development/python-modules/textparser/default.nix
@@ -0,0 +1,39 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, setuptools-scm
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "textparser";
+  version = "0.24.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-VvcI51qp0AKtt22CO6bvFm1+zsHj5MpMHKED+BdWgzU=";
+  };
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "textparser"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/eerimoq/textparser";
+    description = "A text parser";
+    license = licenses.mit;
+    maintainers = with maintainers; [ gray-heron ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 4bd2655a808a..215c7491b58d 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1777,6 +1777,8 @@ self: super: with self; {
 
   canopen = callPackage ../development/python-modules/canopen { };
 
+  cantools = callPackage ../development/python-modules/cantools { };
+
   camelot = callPackage ../development/python-modules/camelot { };
 
   capstone = callPackage ../development/python-modules/capstone {
@@ -13726,6 +13728,8 @@ self: super: with self; {
 
   textile = callPackage ../development/python-modules/textile { };
 
+  textparser = callPackage ../development/python-modules/textparser { };
+
   textual = callPackage ../development/python-modules/textual { };
 
   textual-universal-directorytree = callPackage ../development/python-modules/textual-universal-directorytree { };