move fonttools to its own directory

pkgs/development/python-modules/fonttools/default.nix

@@ -0,0 +1,32 @@
+{ buildPythonPackage
+, fetchPypi
+, numpy
+, pytest
+, pytestrunner
+}:
+
+buildPythonPackage rec {
+  pname = "fonttools";
+  version = "3.13.0";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "5ec278ff231d0c88afe8266e911ee0f8e66c8501c53f5f144a1a0abbc936c6b8";
+    extension = "zip";
+  };
+
+  buildInputs = [
+    numpy
+  ];
+
+  checkInputs = [
+    pytest
+    pytestrunner
+  ];
+
+  meta = {
+    homepage = "https://github.com/fonttools/fonttools";
+    description = "A library to manipulate font files from Python";
+  };
+}

pkgs/top-level/python-packages.nix

@@ -11417,31 +11417,7 @@ in {
     inherit python;
   };
 
-  fonttools = buildPythonPackage (rec {
-    pname = "fonttools";
-    version = "3.13.0";
-    name = "${pname}-${version}";
-
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "5ec278ff231d0c88afe8266e911ee0f8e66c8501c53f5f144a1a0abbc936c6b8";
-      extension = "zip";
-    };
-
-    buildInputs = with self; [
-      numpy
-    ];
-
-    checkInputs = with self; [
-      pytest
-      pytestrunner
-    ];
-
-    meta = {
-      homepage = "https://github.com/fonttools/fonttools";
-      description = "A library to manipulate font files from Python";
-    };
-  });
+  fonttools = callPackage ../development/python-modules/fonttools { };
 
   foolscap = buildPythonPackage (rec {
     name = "foolscap-${version}";