pythonPackages.pint: refactor move to python-modules

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

@@ -0,0 +1,21 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "pint";
+  version = "0.7.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1bbp5s34gcb9il2wyz4spznshahwbjvwi5bhjm7bnxk358spvf9q";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Physical quantities module";
+    license = licenses.bsd3;
+    homepage = "https://github.com/hgrecco/pint/";
+  };
+
+}