pythonPackages.monotonic: refactor move to python-modules

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

@@ -0,0 +1,28 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "monotonic";
+  version = "1.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "06vw7jwq96106plhlc5vz1v1xvjismdgw9wjyzvzf0ylglnrwiib";
+  };
+
+  __propagatedImpureHostDeps = stdenv.lib.optional stdenv.isDarwin "/usr/lib/libc.dylib";
+
+  patchPhase = stdenv.lib.optionalString stdenv.isLinux ''
+    substituteInPlace monotonic.py --replace \
+      "ctypes.util.find_library('c')" "'${stdenv.glibc.out}/lib/libc.so.6'"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "An implementation of time.monotonic() for Python 2 & < 3.3";
+    homepage = https://github.com/atdt/monotonic;
+    license = licenses.asl20;
+  };
+
+}