[gdal-dev] Problems with passing parameters into gdalwrap in Python

[manzione]

Greetings All, 
I am a student who has been having a difficult time passing in source
parameters into gdalwrap in Python, and would truly appreciate any insight
that great minds like you might have on my simple problem. 

First off, I am attempting to reproject a Tiff image that was generated from
a Grib2 rasterband by using the subprocess.call(cmd) method.  My cmd
statement is as follows: 

cmd = ["gdalwarp", "-t_srs", "EPSG:4326", in_Src, target_Src]

The "in_Src" parameter represents the input source file, and the
"target_Src" parameter is an empty temporary file. 

I've seen (and tried) a lot of examples where instead of calling an object
in the cmd line they call a string that references the name of the image
file. 

Example:  subprocess.call(["gdalwarp", "-t_srs", "EPSG:4326", "input.tif",
"output.tif"])

However each time I attempt this technique gdalwarp returns an error message
that states that it cannot locate the source file.  I've tried replacing the
names with path locations and yet I still get the same error returned. 

If someone would be kind enough to show me how to get over this issue I
would be incredibly grateful! 

Thank you in advance, 

-James
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