grass.script.array cannot write raster

[annakrat]

It seems the r64426 (backported in r64614) broke writing the array. Tested ​example with 1.8.2 NumPy, the temporary file disappears once calling this line:

map2d_1[y][x] = y + x
# and then this fails
map2d_1.write(mapname="map2d_1", overwrite=True)

ERROR: Unable to open
       </home/anna/grassdata/xyLocation/anna/.tmp/anna-laptop/12383.0>

[glynn]

Replying to annakrat:

It seems the r64426 (backported in r64614) broke writing the array. Tested ​example with 1.8.2 NumPy, the temporary file disappears once calling this line:

It appears that del gets called on the original array instance for every slice. Note that changing map2d_1[y][x]= to map2d_1[y,x]= (which is to be preferred) avoids the issue, but there are situations where slicing will be appropriate, so this needs to be dealt with.

The docstring for numpy.memmap says:

    This subclass of ndarray has some unpleasant interactions with
    some operations, because it doesn't quite fit properly as a subclass.

r64819 wraps the temporary file in an object, avoiding the need for a del method in the array/array3d class. This appears to solve the issue.

r64820 fixes the examples to use multi-dimensional indexing rather than slicing.

[neteler]

What is the state here? It appears that the aforementioned changes got backported.

Issue solved?

[annakrat]

Replying to neteler:

What is the state here? It appears that the aforementioned changes got backported.

Issue solved?

I believe so.