diff --git a/pkgs/development/python-modules/power/default.nix b/pkgs/development/python-modules/power/default.nix
new file mode 100644
index 00000000000..a54bd025dc7
--- /dev/null
+++ b/pkgs/development/python-modules/power/default.nix
@@ -0,0 +1,24 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "power";
+  version = "1.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "7d7d60ec332acbe3a7d00379b45e39abf650bf7ee311d61da5ab921f52f060f0";
+  };
+
+  # Tests can't work because there is no power information available.
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Cross-platform system power status information";
+    homepage = https://github.com/Kentzo/Power;
+    license = licenses.mit;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 386e45d6c62..8ddb7911919 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4342,23 +4342,7 @@ in {
 
   pushbullet = callPackage ../development/python-modules/pushbullet { };
 
-  power = buildPythonPackage rec {
-    name = "power-1.4";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/p/power/${name}.tar.gz";
-      sha256 = "7d7d60ec332acbe3a7d00379b45e39abf650bf7ee311d61da5ab921f52f060f0";
-    };
-
-    # Tests can't work because there is no power information available.
-    doCheck = false;
-
-    meta = {
-      description = "Cross-platform system power status information";
-      homepage = https://github.com/Kentzo/Power;
-      license = licenses.mit;
-    };
-  };
+  power = callPackage ../development/python-modules/power { };
 
   # added 2018-05-23, can be removed once 18.09 is branched off
   udiskie = throw "pythonPackages.udiskie has been replaced by udiskie";