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The following code works when used with cmd prompt:

C:\gdal_calc.py -A C:\a.tif --outfile=C:\result.tif --calc="A+1"

When I want to run the same code with subprocess:

import subprocess

subprocess.call(['C:\\gdal_calc.py', '-A', 'C:\\a.tif', '--outfile=C:\\result.tif', '--calc="A+1"'])

The following error results:

[Error 193] %1 is not a valid Win32 application

Please help me. I am highly frustating with it. This problem is basically the syntax error when the parameters are fed up into subprocess.call method what I think.

Here is the reference: http://www.gdal.org/gdal_calc.html

gdal_calc.py file is here: http://svn.osgeo.org/gdal/trunk/gdal/swig/python/scripts/gdal_calc.py

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The gdal_calc.py script isn't an executable. Try calling python gdal_calc.py etc...

subprocess.call([sys.executable, 'C:\\gdal_calc.py', '-A', 'C:\\a.tif', '--outfile=C:\\result.tif', '--calc="A+1"'])

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