Advice - Installing GDAL

[Orsucciu]

Hi,

I'm unsure if this should be an issue, it's more like a tip.

I've had a lot of problems to install GDAL in a self-contained way for this addon.

I was hit with the terrible .dll error:

`>>> from osgeo import gdal
ERROR 1: Can't load requested DLL: C:\Program Files\GDAL\gdalplugins\gdal_FITS.dll
127: The specified procedure could not be found.

ERROR 1: Can't load requested DLL: C:\Program Files\GDAL\gdalplugins\gdal_FITS.dll
127: The specified procedure could not be found.`

My solution was to edit the init.py file to this:

`# init for osgeo package.

from sys import version_info
import os

try:
_here = os.path.dirname(file)
os.environ['GDAL_DATA'] = os.path.join(_here, 'data', 'gdal')
os.environ['PATH'] = _here + ';' + os.environ['PATH']
os.environ['PROJ_LIB'] = os.path.join(_here, 'data', 'proj')
os.environ['GDAL_DRIVER_PATH'] = os.path.join(_here, 'gdalplugins')
os.add_dll_directory(_here)
except Exception:
pass

from . import _gdal

version = _gdal.version = _gdal.VersionInfo("RELEASE_NAME")

gdal_version = tuple(int(s) for s in str(version).split('.') if s.isdigit())[:3]
python_version = tuple(version_info)[:3]
`

doing this FORCES python to use the local, self-contained gdal install instead of any system one. It also protects your path