diff --git a/pkgs/development/python-modules/rfc3339/default.nix b/pkgs/development/python-modules/rfc3339/default.nix
new file mode 100644
index 000000000000..4b1355e511a8
--- /dev/null
+++ b/pkgs/development/python-modules/rfc3339/default.nix
@@ -0,0 +1,26 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "rfc3339";
+  version = "6.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1l6l1bh91i2r4dwcm86hlkx8cbh1xwgsk8hb4jvr5y5fxxg3ng6m";
+  };
+
+  # Project has no tests
+  doCheck = false;
+
+  pythonImportsCheck = [ "rfc3339" ];
+
+  meta = with lib; {
+    description = "Format dates according to the RFC 3339";
+    homepage = "https://hg.sr.ht/~henryprecheur/rfc3339";
+    license = licenses.isc;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c009d0a95000..4b9ea9254386 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6655,6 +6655,8 @@ in {
 
   pyquery = callPackage ../development/python-modules/pyquery { };
 
+  pyquil = callPackage ../development/python-modules/pyquil { };
+
   pyrabbit2 = callPackage ../development/python-modules/pyrabbit2 { };
 
   pyrad = callPackage ../development/python-modules/pyrad { };
@@ -7834,6 +7836,8 @@ in {
 
   retworkx = callPackage ../development/python-modules/retworkx { };
 
+  rfc3339 = callPackage ../development/python-modules/rfc3339 { };
+
   rfc3339-validator = callPackage ../development/python-modules/rfc3339-validator { };
 
   rfc3986 = callPackage ../development/python-modules/rfc3986 { };