[gdal-dev] gdal_merge.py won't load libpng

[Dominik Schneider]

Hi,
I am trying to run:
gdal_merge.py -init -9999 -n 2001 -o
MOD09GA.A2012001.h08v05.005.NRTsnow_fraction.tif.1
MOD09GA.A2012001.h08v05.005.NRTsnow_fraction.tif

The Error:
Traceback (most recent call last):
  File "/Library/Frameworks/GDAL.framework/Programs/gdal_merge.py", line
36, in <module>
    import gdal
  File "/usr/local/lib/python2.7/site-packages/gdal.py", line 2, in <module>
    from osgeo.gdal import deprecation_warn
  File "/usr/local/lib/python2.7/site-packages/osgeo/__init__.py", line 21,
in <module>
    _gdal = swig_import_helper()
  File "/usr/local/lib/python2.7/site-packages/osgeo/__init__.py", line 17,
in swig_import_helper
    _mod = imp.load_module('_gdal', fp, pathname, description)
ImportError: dlopen(/usr/local/lib/python2.7/site-packages/osgeo/_gdal.so,
2): Library not loaded: libpng15.15.dylib
  Referenced from: /usr/local/Cellar/gdal/1.10.0/lib/libgdal.1.dylib
  Reason: image not found

Gdal is here:
> which gdal_merge.py
/Library/Frameworks/GDAL.framework/Programs/gdal_merge.py

I'm completely new gdal but am guessing i've got some confusion between
different versions of gdal and python.  I have rgdal installed so at some
point in the past I probably installed gdal too? Today I installed gdal
with homebrew and also tried the binary from
http://www.kyngchaos.com/software:frameworks
For python I have the system default (2.7) on osx.7.5 and the anaconda
installation.

I should also say, if I load python I am unable to import gdal:
> python
Python 2.7.4 |Anaconda 1.5.1 (x86_64)| (default, May  9 2013, 12:12:00)
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from osgeo import gdal
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/osgeo/__init__.py", line 21,
in <module>
    _gdal = swig_import_helper()
  File "/usr/local/lib/python2.7/site-packages/osgeo/__init__.py", line 17,
in swig_import_helper
    _mod = imp.load_module('_gdal', fp, pathname, description)
ImportError: dlopen(/usr/local/lib/python2.7/site-packages/osgeo/_gdal.so,
2): Library not loaded: libpng15.15.dylib
  Referenced from: /usr/local/Cellar/gdal/1.10.0/lib/libgdal.1.dylib
  Reason: image not found


any help would be appreciated.
Thanks
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