Merge pull request #3185 from dkillick/unpin_dask

[TST] Unpin dask

Author: corinnebosley

lib/iris/cube.py

@@ -3247,10 +3247,10 @@ def collapsed(self, coords, aggregator, **kwargs):
             # on the cube lazy array.
             # NOTE: do not reform the data in this case, as 'lazy_aggregate'
             # accepts multiple axes (unlike 'aggregate').
-            collapse_axis = dims_to_collapse
+            collapse_axis = list(dims_to_collapse)
             try:
                 data_result = aggregator.lazy_aggregate(self.lazy_data(),
-                                                        collapse_axis,
+                                                        axis=collapse_axis,
                                                         **kwargs)
             except TypeError:
                 # TypeError - when unexpected keywords passed through (such as

requirements/core.txt

@@ -7,7 +7,7 @@ cartopy
 #conda: proj4<5
 cf_units>=2
 cftime
-dask[array]==0.18.1  #conda: dask==0.18.1
+dask[array]  #conda: dask
 matplotlib>=2,<3
 netcdf4
 numpy>=1.14