diff --git a/pkgs/development/python-modules/construct/default.nix b/pkgs/development/python-modules/construct/default.nix
new file mode 100644
index 00000000000..1845d7ec94f
--- /dev/null
+++ b/pkgs/development/python-modules/construct/default.nix
@@ -0,0 +1,27 @@
+{ stdenv, buildPythonPackage, fetchFromGitHub, six, pythonOlder }:
+
+buildPythonPackage rec {
+  name = "construct-${version}";
+  version = "2.8.10";
+
+  src = fetchFromGitHub {
+    owner = "construct";
+    repo = "construct";
+    rev = "v${version}";
+    sha256 = "1xfmmc5pihn3ql9f7blrciy06y2bwczqvkbcpvh96dmgqwc3wys3";
+  };
+
+  propagatedBuildInputs = [ six ];
+
+  # Tests fail with the following error on Python 3.5+
+  # TypeError: not all arguments converted during string formatting
+  doCheck = pythonOlder "3.5";
+
+  meta = with stdenv.lib; {
+    description = "Powerful declarative parser (and builder) for binary data";
+    homepage = http://construct.readthedocs.org/;
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ bjornfor ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 67ea140586d..472f84c274d 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3044,33 +3044,7 @@ in {
 
   confluent-kafka = callPackage ../development/python-modules/confluent-kafka {};
 
-
-  construct = buildPythonPackage rec {
-    name = "construct-${version}";
-    version = "2.8.10";
-
-    src = pkgs.fetchFromGitHub {
-      owner = "construct";
-      repo = "construct";
-      rev = "v${version}";
-      sha256 = "1xfmmc5pihn3ql9f7blrciy06y2bwczqvkbcpvh96dmgqwc3wys3";
-    };
-
-    propagatedBuildInputs = with self; [ six ];
-
-    # Tests fail with the following error on Python 3.5+
-    # TypeError: not all arguments converted during string formatting
-    doCheck = pythonOlder "3.5";
-
-    meta = {
-      description = "Powerful declarative parser (and builder) for binary data";
-      homepage = http://construct.readthedocs.org/;
-      license = licenses.mit;
-      platforms = platforms.linux;
-      maintainers = with maintainers; [ bjornfor ];
-    };
-  };
-
+  construct = callPackage ../development/python-modules/construct {};
 
   consul = buildPythonPackage (rec {
     name = "python-consul-0.7.0";