import dask.array as da

x = da.zeros(10)
x[da.arange(3)] = 1

ValueError                                Traceback (most recent call last)
~/Documents/FOSS/dask-tlouf/dask/array/core.py in __setitem__(self, key, value)
   1720             try:
-> 1721                 y = where(key, value, self)
   1722             except ValueError as e:

~/Documents/FOSS/dask-tlouf/dask/array/routines.py in where(condition, x, y)
   2037     else:
-> 2038         return elemwise(np.where, condition, x, y)
   2039 

~/Documents/FOSS/dask-tlouf/dask/array/core.py in elemwise(op, out, where, dtype, name, *args, **kwargs)
   4441     out_ndim = len(
-> 4442         broadcast_shapes(*shapes)
   4443     )  # Raises ValueError if dimensions mismatch

~/Documents/FOSS/dask-tlouf/dask/array/core.py in broadcast_shapes(*shapes)
   4369         if any(i not in [-1, 0, 1, dim] and not np.isnan(i) for i in sizes):
-> 4370             raise ValueError(
   4371                 "operands could not be broadcast together with "

ValueError: operands could not be broadcast together with shapes (3,) () (10,)

The above exception was the direct cause of the following exception:

ValueError                                Traceback (most recent call last)
<ipython-input-9-7ccc3d8dfd86> in <module>
      1 x = da.zeros(10)
----> 2 x[da.arange(3)] = 1

~/Documents/FOSS/dask-tlouf/dask/array/core.py in __setitem__(self, key, value)
   1721                 y = where(key, value, self)
   1722             except ValueError as e:
-> 1723                 raise ValueError(
   1724                     "Boolean index assignment in Dask "
   1725                     "expects equally shaped arrays.\nExample: da1[da2] = da3 "

ValueError: Boolean index assignment in Dask expects equally shaped arrays.
Example: da1[da2] = da3 where da1.shape == (4,), da2.shape == (4,) and da3.shape == (4,).

x = da.zeros(10)
x[da.arange(3),] = 1