diff --git a/pkgs/development/python-modules/tenacity/default.nix b/pkgs/development/python-modules/tenacity/default.nix
new file mode 100644
index 00000000000..596fa6b825f
--- /dev/null
+++ b/pkgs/development/python-modules/tenacity/default.nix
@@ -0,0 +1,34 @@
+{ lib, buildPythonPackage, fetchPypi, isPy27
+, pbr, six, futures, monotonic
+, pytest, sphinx, tornado
+}:
+
+buildPythonPackage rec {
+  pname = "tenacity";
+  version = "5.0.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1rjbj9wks7b7n75mbm01y0g2ngyai8yi05ck9gicmcdyix7vw42c";
+  };
+
+  nativeBuildInputs = [ pbr ];
+  propagatedBuildInputs = [ six ]
+    ++ lib.optionals isPy27 [ futures monotonic ];
+
+  checkInputs = [ pytest sphinx tornado ];
+  checkPhase = (if isPy27 then ''
+    pytest --ignore='tenacity/tests/test_asyncio.py'
+  '' else ''
+    pytest
+  '') + ''
+    sphinx-build -a -E -W -b doctest doc/source doc/build
+  '';
+
+  meta = with lib; {
+    homepage = https://github.com/jd/tenacity;
+    description = "Retrying library for Python";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ jakewaksbaum ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index eb70dd620a7..164c0b99d88 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -772,6 +772,8 @@ in {
 
   sniffio = callPackage ../development/python-modules/sniffio { };
 
+  tenacity = callPackage ../development/python-modules/tenacity { };
+
   tokenserver = callPackage ../development/python-modules/tokenserver {};
 
   toml = callPackage ../development/python-modules/toml { };