diff --git a/pkgs/development/python-modules/pem/default.nix b/pkgs/development/python-modules/pem/default.nix
new file mode 100644
index 000000000000..3ef5b7ffc75c
--- /dev/null
+++ b/pkgs/development/python-modules/pem/default.nix
@@ -0,0 +1,46 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchFromGitHub
+, pytestCheckHook
+, certifi
+, cryptography
+, pretend
+, pyopenssl
+, twisted
+}:
+
+buildPythonPackage rec {
+  pname = "pem";
+  version = "21.2.0";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "hynek";
+    repo = pname;
+    rev = version;
+    hash = "sha256-mftLdgtgb5J4zwsb1F/4v4K7XTy4VSZBMy3zPV2f1uA=";
+  };
+
+  nativeCheckInputs = [
+    certifi
+    cryptography
+    pretend
+    pyopenssl
+    pytestCheckHook
+    twisted
+    twisted.optional-dependencies.tls
+  ];
+
+  pythonImportsCheck = [
+    "pem"
+  ];
+
+  meta = with lib; {
+    homepage = "https://pem.readthedocs.io/";
+    description = "Easy PEM file parsing in Python.";
+    license = licenses.mit;
+    maintainers = with maintainers; [ nyanotech ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 1dfd4e32504c..d358cdd4aad0 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7476,6 +7476,8 @@ self: super: with self; {
     inherit (pkgs) glibcLocales git;
   };
 
+  pem = callPackage ../development/python-modules/pem { };
+
   pendulum = callPackage ../development/python-modules/pendulum { };
 
   pep440 = callPackage ../development/python-modules/pep440 { };