diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
index 66e42ad..448e054 100644
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -5,4 +5,6 @@ pkgs: self: super: with self; {
   openslide = callPackage ./openslide/python.nix { openslide = pkgs.openslide; };
 
   pybedtools = callPackage ./pybedtools.nix { };
+
+  xopen = callPackage ./xopen.nix { };
 }
diff --git a/pkgs/xopen.nix b/pkgs/xopen.nix
new file mode 100644
index 0000000..74c1022
--- /dev/null
+++ b/pkgs/xopen.nix
@@ -0,0 +1,23 @@
+{ lib, fetchPypi, buildPythonPackage
+, setuptools_scm
+, bz2file, pytest }:
+
+buildPythonPackage rec {
+  version = "0.7.1";
+  pname = "xopen";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1i68nf73abzd19x4ccrk2nxfblqfzz0zzm6vh0l3qzin0np1d89r";
+  };
+
+  buildInputs = [ setuptools_scm ];
+  propagatedBuildInputs = [ bz2file ];
+  checkInputs = [ pytest ];
+
+  meta = with lib; {
+    homepage = "hhttps://github.com/marcelm/xopen";
+    description = "Python module provides an xopen function that works like the built-in open function, but can also deal with compressed files (gzip, bzip2, and xz).";
+    license = licenses.mit;
+  };
+}