diff --git a/pkgs/development/python-modules/isoweek/default.nix b/pkgs/development/python-modules/isoweek/default.nix
new file mode 100644
index 000000000000..65de70b20b5e
--- /dev/null
+++ b/pkgs/development/python-modules/isoweek/default.nix
@@ -0,0 +1,19 @@
+{ lib, fetchPypi, buildPythonPackage }:
+
+buildPythonPackage rec {
+  pname = "isoweek";
+  version = "1.3.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1s7zsf0pab0l9gn6456qadnz5i5h90hafcjwnhx5mq23qjxggwvk";
+  };
+
+  meta = with lib; {
+    description = "The module provide the class Week. Instances represent specific weeks spanning Monday to Sunday.";
+    homepage = "https://github.com/gisle/isoweek";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ mrmebelman ];
+  };
+}
+
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index cc08960544cc..43d76a7fa4ef 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3320,6 +3320,8 @@ in {
 
   isort = callPackage ../development/python-modules/isort {};
 
+  isoweek = callPackage ../development/python-modules/isoweek {};
+
   jabberbot = callPackage ../development/python-modules/jabberbot {};
 
   jedi = callPackage ../development/python-modules/jedi { };