python3Packages.opt-einsum: 2.3.2 -> 3.0.1

pkgs/development/python-modules/opt-einsum/2.nix

@@ -0,0 +1,30 @@
+{ buildPythonPackage, fetchPypi, lib, numpy, pytest_4 }:
+
+buildPythonPackage rec {
+  version = "2.3.2";
+  pname = "opt_einsum";
+
+  src = fetchPypi {
+    inherit version pname;
+    sha256 = "0ny3v8x83mzpwmqjdzqhzy2pzwyy4wx01r1h9i29xw3yvas69m6k";
+  };
+
+  checkInputs = [
+    pytest_4
+  ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  propagatedBuildInputs = [
+    numpy
+  ];
+
+  meta = {
+    description = "Optimizing NumPy's einsum function with order optimization and GPU support.";
+    homepage = http://optimized-einsum.readthedocs.io;
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ teh ];
+  };
+}

pkgs/development/python-modules/opt-einsum/default.nix

@@ -1,30 +1,26 @@
 { buildPythonPackage, fetchPypi, lib, numpy, pytest_4 }:
 
 buildPythonPackage rec {
-  version = "2.3.2";
+  version = "3.0.1";
   pname = "opt_einsum";
 
   src = fetchPypi {
     inherit version pname;
-    sha256 = "0ny3v8x83mzpwmqjdzqhzy2pzwyy4wx01r1h9i29xw3yvas69m6k";
+    sha256 = "1agyvq26x0zd6j3wzgczl4apx8v7cb9w1z50azn8c3pq9jphgfla";
   };
 
-  checkInputs = [
-    pytest_4
-  ];
+  propagatedBuildInputs = [ numpy ];
+
+  checkInputs = [ pytest_4 ];
 
   checkPhase = ''
     pytest
   '';
 
-  propagatedBuildInputs = [
-    numpy
-  ];
-
-  meta = {
+  meta = with lib; {
     description = "Optimizing NumPy's einsum function with order optimization and GPU support.";
     homepage = http://optimized-einsum.readthedocs.io;
-    license = lib.licenses.mit;
-    maintainers = with lib.maintainers; [ teh ];
+    license = licenses.mit;
+    maintainers = with maintainers; [ teh ];
   };
 }

pkgs/top-level/python-packages.nix

@@ -3165,7 +3165,10 @@ in {
 
   pyro-ppl = callPackage ../development/python-modules/pyro-ppl {};
 
-  opt-einsum = callPackage ../development/python-modules/opt-einsum {};
+  opt-einsum = if isPy27 then
+      callPackage ../development/python-modules/opt-einsum/2.nix {}
+    else
+      callPackage ../development/python-modules/opt-einsum {};
 
   pytorchWithCuda = self.pytorch.override {
     cudaSupport = true;