Cannot import gdal_array

Question

I attempted to use GDAL without installing due to not having rights to install on this computer. I managed to get several gdal modules working, but when I attempted to use ReadAsArray() I received the import error

ImportError: No module named _gdal_array

I looked through the python folder and found that gdal and gdalconst both had pyd files and compiled files, but gdal_array does not.

When I ran VersionInfo() I got the value 1910 for gdal if that helps. I also have python 2.6 and numpy

Does anyone know a way I could fix this problem without using a gdal installer?

I have the same issue. Using the GDAL 64 bit version, the _gdal_array.pyd is NOT generated and when I call ReadAsArray() is returning the error: ImportError: No module named _gdal_array. Using the GDAL 32 bit version the _gdal_array.pyd file is generated and it is working. How can I solve it? Thanks — , Jan 27 '16 at 16:08
@Federico As I recall, I followed Lafleur's instructions that he posted in my other question (http://gis.stackexchange.com/questions/82977/is-it-possible-to-use-gdal-without-admin-rights/83297#83297) and it fixed it for me. — Dzinic, Jan 28 '16 at 20:08

score 5 · Answer 1 · answered Dec 30 '18 at 13:07

5

This happens when numpy was not yet installed during the installation of gdal-python. This normally only affects folks who install using pip and install gdal before numpy. numpy is an optional build requirement and the package will install but quietly not include the _gdal_array component

To resolve, force a reinstall (rebuild of the package), via pip:

pip install numpy
pip install --force-reinstall gdal

or can be done using system package manager.

answered Dec 30 '18 at 13:07

crasic

203
2
7

1

This should be the accepted answer - correct explanation of the reason together with a solution that works. Thank you! – johndodo Oct 14 '20 at 08:32
1

No such luck for me :/ – Shayne Sep 08 '22 at 05:44
@Shayne what does the log say when it builds the _gdal_array module? – crasic Sep 09 '22 at 20:19

score 3 · Accepted Answer · edited Apr 13 '17 at 12:34

3

Poking around I figured out that a bunch of gdal bundles are missing files, including the maptools.org ones. http://lists.osgeo.org/pipermail/gdal-dev/2011-May/028708.html

I found a gdal 1.10 version that is working for me. Put the install instructions with the original question: Is it possible to use GDAL without admin rights?

edited Apr 13 '17 at 12:34

Community

1

answered Jan 16 '14 at 23:45

Lafleur

131
3

score -2 · Answer 3 · answered Feb 05 '16 at 15:03

-2

In case you need gdal+python on windows x64, you should compile it manually.

answered Feb 05 '16 at 15:03

Andrei

9

Cannot import gdal_array

3 Answers3

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