python.pkgs.tensorflow{,-bin,-estimator,-tensorboard}-2: Init at 2.1.0

Major breaking change from 1.x, so treating keeping both versions for now.

(adapted from 33f11be707)
(adapted from 9e8dea7986)

pkgs/development/python-modules/tensorflow-estimator/1/default.nix

@@ -0,0 +1,27 @@
+{ stdenv, fetchPypi, buildPythonPackage
+, numpy
+, absl-py
+, mock
+}:
+
+buildPythonPackage rec {
+  pname = "tensorflow-estimator";
+  version = "1.15.1";
+  format = "wheel";
+
+  src = fetchPypi {
+    pname = "tensorflow_estimator";
+    inherit version format;
+    sha256 = "1fc61wmc0w22frs79j2x4g6wnv5g21xc6rix1g4bsvy9qfvvylw8";
+  };
+
+  propagatedBuildInputs = [ mock numpy absl-py ];
+
+  meta = with stdenv.lib; {
+    description = "TensorFlow Estimator is a high-level API that encapsulates model training, evaluation, prediction, and exporting.";
+    homepage = http://tensorflow.org;
+    license = licenses.asl20;
+    maintainers = with maintainers; [ jyp ];
+  };
+}
+