diff --git a/pkgs/development/python-modules/xc-fasm/default.nix b/pkgs/development/python-modules/xc-fasm/default.nix
new file mode 100644
index 00000000000..bf00bb15901
--- /dev/null
+++ b/pkgs/development/python-modules/xc-fasm/default.nix
@@ -0,0 +1,45 @@
+{ stdenv
+, fetchFromGitHub
+, buildPythonPackage
+, pytestCheckHook
+, simplejson
+, intervaltree
+, python-prjxray
+, symbiflow-fasm
+, textx
+}:
+
+buildPythonPackage rec {
+  pname = "xc-fasm";
+  version = "0.0.1-g0ddd9516";
+
+  src = fetchFromGitHub {
+    owner = "SymbiFlow";
+    repo = "xc-fasm";
+    rev = "0ddd951602d47d5b95f2072f8aa751af5e81e577";
+    sha256 = "15bzw92sx99s0zldr48na4yhrnp7b90nxsd8ya6ag1pvvijp2al4";
+  };
+
+  propagatedBuildInputs = [
+    simplejson
+    intervaltree
+    python-prjxray
+    symbiflow-fasm
+    textx
+  ];
+
+  # Pip will check for and then install missing dependecies.
+  # Because some of them are installed from git, it will try
+  # to download them even if they're present in
+  # propagatedBuildInputs.
+  pipInstallFlags = [ "--no-deps" ];
+
+  checkInputs = [ pytestCheckHook ];
+
+  meta = with stdenv.lib; {
+    description = "XC FASM libraries";
+    homepage = "https://github.com/SymbiFlow/xc-fasm";
+    license = licenses.isc;
+    maintainers = with maintainers; [ mcaju ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 03ffda4e35e..10b9660e403 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8065,6 +8065,8 @@ in {
 
   xattr = callPackage ../development/python-modules/xattr { };
 
+  xc-fasm = callPackage ../development/python-modules/xc-fasm { };
+
   xcaplib = callPackage ../development/python-modules/xcaplib { };
 
   xcffib = callPackage ../development/python-modules/xcffib { };