diff --git a/pkgs/development/python-modules/cysignals/default.nix b/pkgs/development/python-modules/cysignals/default.nix
new file mode 100644
index 00000000000..c1fedecbff3
--- /dev/null
+++ b/pkgs/development/python-modules/cysignals/default.nix
@@ -0,0 +1,41 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, cython
+, sphinx
+}:
+
+buildPythonPackage rec {
+  pname = "cysignals";
+  version = "1.6.9";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "003invnixqy1h4lb358vwrxykxzp15csaddkgq3pqqmswnva5908";
+  };
+
+  hardeningDisable = [
+    "fortify"
+  ];
+
+  # currently fails, probably because of formatting changes in gdb 8.0
+  doCheck = false;
+
+  preCheck = ''
+    # Make sure cysignals-CSI is in PATH
+    export PATH="$out/bin:$PATH"
+  '';
+
+  propagatedBuildInputs = [
+    cython
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "Interrupt and signal handling for Cython";
+    homepage = https://github.com/sagemath/cysignals/;
+    maintainers = with lib.maintainers; [ timokau ];
+    license = lib.licenses.lgpl3Plus;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 63aa5a513ea..8e90405cd2e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1203,6 +1203,8 @@ in {
 
   cycler = callPackage ../development/python-modules/cycler { };
 
+  cysignals = callPackage ../development/python-modules/cysignals { };
+
   dlib = buildPythonPackage rec {
     inherit (pkgs.dlib) name src nativeBuildInputs meta;