python3Packages.datashader: relax xarray constraint

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

@@ -25,19 +25,13 @@
 buildPythonPackage rec {
   pname = "datashader";
   version = "0.13.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "sha256-6JscHm1QjDmXOLLa83qhAvY/xwvlPM6duQ1lSxnCVV8=";
   };
 
-  # the complete extra is for usage with conda, which we
-  # don't care about
-  postPatch = ''
-    substituteInPlace setup.py \
-      --replace "dask[complete]" "dask"
-  '';
-
   propagatedBuildInputs = [
     dask
     bokeh
@@ -56,13 +50,21 @@ buildPythonPackage rec {
 
   checkInputs = [
     pytestCheckHook
-    pytest-xdist # not needed
+    pytest-xdist
     nbsmoke
     fastparquet
     nbconvert
     netcdf4
   ];
 
+  # The complete extra is for usage with conda, which we
+  # don't care about
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "dask[complete]" "dask" \
+      --replace "xarray >=0.9.6" "xarray"
+  '';
+
   preCheck = ''
     export HOME=$TMPDIR
   '';
@@ -73,10 +75,10 @@ buildPythonPackage rec {
   ];
 
   disabledTests = [
-    # not compatible with current version of bokeh
+    # Not compatible with current version of bokeh
     # see: https://github.com/holoviz/datashader/issues/1031
     "test_interactive_image_update"
-    # latest dask broken array marshalling
+    # Latest dask broken array marshalling
     # see: https://github.com/holoviz/datashader/issues/1032
     "test_raster_quadmesh_autorange_reversed"
   ];
@@ -86,10 +88,14 @@ buildPythonPackage rec {
     "datashader/tests/test_datatypes.py"
   ];
 
+  pythonImportsCheck = [
+    "datashader"
+  ];
+
   meta = with lib;{
     description = "Data visualization toolchain based on aggregating into a grid";
     homepage = "https://datashader.org";
     license = licenses.bsd3;
-    maintainers = [ maintainers.costrouc ];
+    maintainers = with maintainers; [ costrouc ];
   };
 }