diff --git a/pkgs/development/python-modules/approvaltests/default.nix b/pkgs/development/python-modules/approvaltests/default.nix
new file mode 100644
index 000000000000..de64f86d7282
--- /dev/null
+++ b/pkgs/development/python-modules/approvaltests/default.nix
@@ -0,0 +1,38 @@
+{ stdenv, buildPythonPackage, fetchFromGitHub, isPy37, pyperclip }:
+
+buildPythonPackage rec {
+  version = "0.2.4";
+  pname = "approvaltests";
+
+  # no tests included in PyPI tarball
+  src = fetchFromGitHub {
+    owner = "approvals";
+    repo = "ApprovalTests.Python";
+    rev = version;
+    sha256 = "05lj5i13zpkgw1wdc1v81wj4zqj8bpzqiwycdnwlg08azcy7k7j1";
+  };
+
+  propagatedBuildInputs = [ pyperclip ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "pyperclip==1.5.27" "pyperclip>=1.5.27"
+  '';
+
+  # Tests fail on Python 3.7
+  # https://github.com/approvals/ApprovalTests.Python/issues/36
+  doCheck = !isPy37;
+
+  # Disable Linux failing test, because tries to use darwin/windows specific reporters
+  preCheck = stdenv.lib.optionalString stdenv.isLinux ''
+    substituteInPlace tests/test_genericdiffreporter.py \
+      --replace "test_find_working_reporter" "_find_working_reporter"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Assertion/verification library to aid testing";
+    homepage = https://github.com/approvals/ApprovalTests.Python;
+    license = licenses.asl20;
+    maintainers = [ maintainers.marsam ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c8ac1a62be92..44db2c4cd3a2 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -835,6 +835,8 @@ in {
 
   appnope = callPackage ../development/python-modules/appnope { };
 
+  approvaltests = callPackage ../development/python-modules/approvaltests { };
+
   apsw = callPackage ../development/python-modules/apsw {};
 
   astor = callPackage ../development/python-modules/astor {};