ERROR 4: No such file or directory when attempting to close dataset

[amine-aboufirass]

Expected behavior and actual behavior.

When I open memory/physical files without using the with statement (namely using dataset.open() and dataset.close(), I believe I should have no warnings or error messages. However I get an error:

ERROR 4: No such file or directory

Steps to reproduce the problem.

import numpy as np
from rasterio.io import MemoryFile
import rasterio

memfile = MemoryFile()
data = np.array([[1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]])
west_bound = 0; north_bound = 2; cellsize=0.5; nodata = -9999; driver='AAIGrid';
dtype = data.dtype
shape = data.shape
transform = rasterio.transform.from_origin(west_bound, north_bound, cellsize, cellsize)
dataset = memfile.open(driver=driver, width=shape[1], height=shape[0], transform=transform, count=1, dtype=dtype, nodata=nodata)
dataset.write(data,1)
dataset.close()

The line which causes the error is the very last line, namely when we close the dataset.

Operating system

Windows 7 Enterprise, 64 bit

Rasterio version and provenance

rasterio 1.0.21 installed using anaconda

[sgillies]

I had some advice for quieting the error on the discussion group, but I see something to be done in the Rasterio code. At https://github.com/mapbox/rasterio/blob/master/rasterio/_io.pyx#L852 we can intercept and discard the error message.

Thanks for the report!