Did GDAL install correctly in Winpython?

Question

I installed the "gdal-201-1800-core.msi" and "GDAL-2.1.2.win32-py3.4.msi" in WinPython. It looks like the gdal could run in python shell.( there is no error when type "import gdal" ). But I could not use any gdal function such as "GetRasterband()","ReadAsArray". what's wrong with the gdal?

import gdal

import ogr

file=gdal.Open(r'D:\GeoNE\temp\m2000049.tif')

band=file.GetRasterBand(1)
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-4-a8404d484b8e> in <module>()
----> 1 band=file.GetRasterband(1)

AttributeError: 'NoneType' object has no attribute 'GetRasterBand'

Answer 1

You are not specifying the access conditions after the name of the dataset. See here. Try to mention if it is GA_ReadOnly or GA_Update, like

filename='D:/GeoNE/temp/m2000049.tif'    
dataset=gdal.Open(filename,gdal.GA_ReadOnly)  # opening file

Also check if your raster is ok in any GIS software, and try to open with gdal any another raster.

Answer 2

Try using:

filename = 'D:/GeoNE/temp/m2000049.tif'
file=gdal.Open(filename)

instead of what you have provided.