diff --git a/pkgs/applications/misc/pyditz/default.nix b/pkgs/applications/misc/pyditz/default.nix
new file mode 100644
index 000000000000..0f4e743aba4e
--- /dev/null
+++ b/pkgs/applications/misc/pyditz/default.nix
@@ -0,0 +1,25 @@
+{ stdenv, pythonPackages }:
+
+pythonPackages.buildPythonApplication rec {
+  pname = "pyditz";
+  version = "0.10.3";
+
+  src = pythonPackages.fetchPypi {
+    inherit pname version;
+    sha256 = "0hxxz7kxv9gsrr86ccsc31g7bc2agw1ihbxhd659c2m6nrqq5qaf";
+  };
+  nativeBuildInputs = [ pythonPackages.setuptools_scm ];
+  propagatedBuildInputs = with pythonPackages; [ pyyaml six jinja2 cerberus11 ];
+
+  checkPhase = ''
+    ${pythonPackages.python.interpreter} -m unittest discover
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = https://pythonhosted.org/pyditz/;
+    description = "Drop-in replacement for the Ditz distributed issue tracker";
+    maintainers = [ maintainers.ilikeavocadoes ];
+    license = licenses.lgpl2;
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/development/python-modules/cerberus11/default.nix b/pkgs/development/python-modules/cerberus11/default.nix
new file mode 100644
index 000000000000..614e3ca81350
--- /dev/null
+++ b/pkgs/development/python-modules/cerberus11/default.nix
@@ -0,0 +1,19 @@
+{ stdenv, buildPythonPackage, fetchPypi, pytestrunner, pytest }:
+
+buildPythonPackage rec {
+  pname = "Cerberus";
+  version = "1.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1pxzr8sfm2hc5s96m9k044i44nwkva70n0ypr6a35v73zn891cx5";
+  };
+
+  checkInputs = [ pytestrunner pytest ];
+
+  meta = with stdenv.lib; {
+    homepage = http://python-cerberus.org/;
+    description = "Lightweight, extensible schema and data validation tool for Python dictionaries";
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5841061c8409..16206bf53beb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5491,6 +5491,10 @@ in
 
   pythonSexy = pythonPackages.libsexy;
 
+  pyditz = callPackage ../applications/misc/pyditz {
+    pythonPackages = python27Packages;
+  };
+
   pytrainer = callPackage ../applications/misc/pytrainer { };
 
   pywal = with python3Packages; toPythonApplication pywal;
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8ce7056feb54..2cc3e62d2dac 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1673,6 +1673,8 @@ in {
 
   cerberus = callPackage ../development/python-modules/cerberus { };
 
+  cerberus11 = callPackage ../development/python-modules/cerberus11 { };
+
   certifi = callPackage ../development/python-modules/certifi { };
 
   characteristic = callPackage ../development/python-modules/characteristic { };