diff --git a/pkgs/development/python-modules/js2py/default.nix b/pkgs/development/python-modules/js2py/default.nix
new file mode 100644
index 000000000000..c47e6aee0bbd
--- /dev/null
+++ b/pkgs/development/python-modules/js2py/default.nix
@@ -0,0 +1,37 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, tzlocal
+, six
+, pyjsparser
+}:
+
+buildPythonPackage rec {
+  pname = "js2py";
+  version = "0.71";
+
+  src = fetchFromGitHub {
+    owner = "PiotrDabkowski";
+    repo = "Js2Py";
+    rev = "5f665f60083a9796ec33861240ce31d6d2b844b6";
+    sha256 = "sha256-1omTV7zkYSQfxhkNgI4gtXTenWt9J1r3VARRHoRsSfc=";
+  };
+
+  propagatedBuildInputs = [
+    pyjsparser
+    six
+    tzlocal
+  ];
+
+  # Test require network connection
+  doCheck = false;
+
+  pythonImportsCheck = [ "js2py" ];
+
+  meta = with lib; {
+    description = "JavaScript to Python Translator & JavaScript interpreter written in 100% pure Python";
+    homepage = "https://github.com/PiotrDabkowski/Js2Py";
+    license = licenses.mit;
+    maintainers = with maintainers; [ onny ];
+  };
+}
diff --git a/pkgs/development/python-modules/lark/default.nix b/pkgs/development/python-modules/lark/default.nix
index 8fc32539d69d..62123032a5d4 100644
--- a/pkgs/development/python-modules/lark/default.nix
+++ b/pkgs/development/python-modules/lark/default.nix
@@ -4,6 +4,7 @@
 , python
 , regex
 , pytestCheckHook
+, js2py
 }:
 
 buildPythonPackage rec {
@@ -27,10 +28,9 @@ buildPythonPackage rec {
     "lark.grammars"
   ];
 
-  checkInputs = [ pytestCheckHook ];
-
-  disabledTestPaths = [
-    "tests/test_nearley/test_nearley.py"  # requires unpackaged Js2Py library
+  checkInputs = [
+    js2py
+    pytestCheckHook
   ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/pyjsparser/default.nix b/pkgs/development/python-modules/pyjsparser/default.nix
new file mode 100644
index 000000000000..0f2ddf62f1a8
--- /dev/null
+++ b/pkgs/development/python-modules/pyjsparser/default.nix
@@ -0,0 +1,36 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, pytestCheckHook
+, js2py
+}:
+
+let pyjsparser = buildPythonPackage rec {
+  pname = "pyjsparser";
+  version = "2.7.1";
+
+  src = fetchFromGitHub {
+    owner = "PiotrDabkowski";
+    repo = pname;
+    rev = "5465d037b30e334cb0997f2315ec1e451b8ad4c1";
+    sha256 = "sha256-Hqay9/qsjUfe62U7Q79l0Yy01L2Bnj5xNs6427k3Br8=";
+  };
+
+  checkInputs = [ pytestCheckHook js2py ];
+
+  # escape infinite recursion with js2py
+  doCheck = false;
+
+  passthru.tests = {
+    check = pyjsparser.overridePythonAttrs (_: { doCheck = true; });
+  };
+
+  pythonImportsCheck = [ "pyjsparser" ];
+
+  meta = with lib; {
+    description = "Fast javascript parser (based on esprima.js)";
+    homepage = "https://github.com/PiotrDabkowski/pyjsparser";
+    license = licenses.mit;
+    maintainers = with maintainers; [ onny ];
+  };
+}; in pyjsparser
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 057fadf1ccad..966b39df278a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4681,6 +4681,8 @@ in {
     inherit (pkgs) jq;
   };
 
+  js2py = callPackage ../development/python-modules/js2py { };
+
   jsbeautifier = callPackage ../development/python-modules/jsbeautifier { };
 
   jschema-to-python = callPackage ../development/python-modules/jschema-to-python { };
@@ -7740,6 +7742,8 @@ in {
 
   pyjson5 = callPackage ../development/python-modules/pyjson5 { };
 
+  pyjsparser = callPackage ../development/python-modules/pyjsparser { };
+
   pyjwkest = callPackage ../development/python-modules/pyjwkest { };
 
   pyjwt = callPackage ../development/python-modules/pyjwt { };