gdal2tiles.py crashes when tile width or height is zero

[csbubbles]

GDAL 2.2.2, released 2017/09/15

Repro

1. Download the attached xxx.tif file
2. Generate tiles for zoom level 19: gdal2tiles.py xxx.tif -z 19

Actual results

Generating Base Tiles:
0...10.ERROR 5: Illegal values for buffer size
ERROR 5: Illegal values for buffer size
Traceback (most recent call last):
  File "/Library/Frameworks/GDAL.framework/Versions/2.1/Programs/gdal2tiles.py", line 2439, in <module>
    main()
  File "/Library/Frameworks/GDAL.framework/Versions/2.1/Programs/gdal2tiles.py", line 2436, in main
    gdal2tiles.process()
  File "/Library/Frameworks/GDAL.framework/Versions/2.1/Programs/gdal2tiles.py", line 481, in process
    self.generate_base_tiles()
  File "/Library/Frameworks/GDAL.framework/Versions/2.1/Programs/gdal2tiles.py", line 1312, in generate_base_tiles
    dsquery.WriteRaster(wx, wy, wxsize, wysize, data, band_list=list(range(1,self.dataBandsCount+1)))
  File "/usr/local/lib/python2.7/site-packages/osgeo/gdal.py", line 1889, in WriteRaster
    buf_pixel_space, buf_line_space, buf_band_space )
TypeError: not a string

Expected results

The tool doesn't crash but succeeds having all the tiles generated.

[csbubbles]

Please let me know how to attach the image file I have, it's about ~25MB.

[Even Rouault]

from the backtrace, tThis looks as a duplicate of #6979 I also note an inconsistency in the version you report (2.2.2) and the version you run (2.1)

[csbubbles]

Yeah, a good catch regarding the version... I am not sure how that happened, but yes, I can see the inconsistency:

$ /Library/Frameworks/GDAL.framework/Versions/2.1/Programs/gdal2tiles.py --version
GDAL 2.2.2, released 2017/09/15

$ /Library/Frameworks/GDAL.framework/Versions/2.1/Programs/gdalinfo --version
GDAL 2.1.3, released 2017/20/01