diff --git a/pkgs/development/python-modules/pyomo/default.nix b/pkgs/development/python-modules/pyomo/default.nix
new file mode 100644
index 00000000000..958711754bd
--- /dev/null
+++ b/pkgs/development/python-modules/pyomo/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pyutilib
+, appdirs
+, ply
+, six
+, nose
+}:
+
+buildPythonPackage rec {
+  pname = "pyomo";
+  version = "5.6.1";
+
+  src = fetchPypi {
+    pname = "Pyomo";
+    inherit version;
+    sha256 = "449be9a4c9b3caee7c89dbe5f0e4e5ad0eaeef8be110a860641cd249986e362c";
+  };
+
+  checkInputs = [ nose ];
+  propagatedBuildInputs = [
+    pyutilib
+    appdirs
+    ply
+    six
+  ];
+
+  checkPhase = ''
+    rm pyomo/bilevel/tests/test_blp.py \
+       pyomo/version/tests/test_installer.py
+    nosetests
+  '';
+
+  meta = with lib; {
+    description = "Pyomo: Python Optimization Modeling Objects";
+    homepage = http://pyomo.org;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/development/python-modules/pyutilib/default.nix b/pkgs/development/python-modules/pyutilib/default.nix
new file mode 100644
index 00000000000..4227a255ad3
--- /dev/null
+++ b/pkgs/development/python-modules/pyutilib/default.nix
@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, nose
+, six
+}:
+
+buildPythonPackage rec {
+  pname = "pyutilib";
+  version = "5.6.5";
+
+  src = fetchPypi {
+    pname = "PyUtilib";
+    inherit version;
+    sha256 = "4730084624be98f2c326da88f3852831c6aa919e11babab2c34b0299c8f5ce2a";
+  };
+
+  propagatedBuildInputs = [
+    nose
+    six
+  ];
+
+  # tests require text files that are not included in the pypi package
+  doCheck = false;
+
+  meta = with lib; {
+    description = "PyUtilib: A collection of Python utilities";
+    homepage = https://github.com/PyUtilib/pyutilib;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index da40c6169d2..c53f355c2b1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3836,6 +3836,8 @@ in {
   pylint = if isPy3k then callPackage ../development/python-modules/pylint { }
            else callPackage ../development/python-modules/pylint/1.9.nix { };
 
+  pyomo = callPackage ../development/python-modules/pyomo { };
+
   pyopencl = callPackage ../development/python-modules/pyopencl { };
 
   pyotp = callPackage ../development/python-modules/pyotp { };
@@ -4024,6 +4026,8 @@ in {
 
   pyutil = callPackage ../development/python-modules/pyutil { };
 
+  pyutilib = callPackage ../development/python-modules/pyutilib { };
+
   pywal = callPackage ../development/python-modules/pywal { };
 
   pywebkitgtk = callPackage ../development/python-modules/pywebkitgtk { };