On 12/3/10 6:26 PM, Brian Wilson wrote:
Greetings, I am looking for some suggestions on how to build the
python bindings for the latest gdal sources (1.7.3) for Windows.
I haven't done it for a while, but a few notes that might help get you
moving:
Environment: Windows 7, Visual Studio 2010, Python 2.5
I'm pretty sure the standard (python,org) build of python 2.5 was build
with Visual Studio 2003, and you need to build extensions with that
same compiler version (or at least the same run-time libraries). So you
need either VS2003 or you can also do it with mingw, with a few tweaks
-- do a bit of googling to see how.
If you're using the python provided by ESRI, I have no idea, but it
seems likely that it's the python,org build.
I set up nmake.opt including PYDIR and PY_INST_DIR. I can't see
anywhere those are USED but I followed docs and set them
appropriately. (C:\Python25)
In general, you want to build python extensions with python's distutils,
which means using:
python setup.py build
The setup.py file is in "swig\python"
The idea here is that python's distutils knows how python was built, and
will set up the compiler to build your extension in a compatible way.
I looked at I looked at http://pypi.python.org/pypi/GDAL/ which has
lovely and usable Linux instructions but I am currently trapped in a
Windows world at my otherwise wonderful day job.
it's worth reading those anyway -- distutils is pretty much the same on
all platforms.
I suspect I need to do something with swig, which I downloaded and
installed, but the "Windows" notes basically say "you should never
have to do this".
the swig-generated bindings should be delivered with the source, so
that's right, you shouldn't ahve to run swig unless you are changin the
source and need to re-generate the binding code.
I am sorry this email is long, but I have had plenty of time to work
on building GDAL today while waiting for fragile and slow ESRI tools
to run, really motivating me to try to use GDAL + Python.
I hope you get it working.
The state of Windows binaries has been a bit of a mess for a while, but
what with all the different python versions, compiler versions and
semi-proprietary drivers, it's a difficult problem!
HTH,
-Chris
--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main reception
[email protected]
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