mirror of https://github.com/ecmwf/eccodes.git
55 lines
1.3 KiB
Python
55 lines
1.3 KiB
Python
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import traceback
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import sys
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from gribapi import *
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INPUT='../../data/reduced_latlon_surface.grib1'
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VERBOSE=1 # verbose error reporting
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def example():
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f = open(INPUT)
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keys = [
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'Ni',
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'Nj',
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'latitudeOfFirstGridPointInDegrees',
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'longitudeOfFirstGridPointInDegrees',
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'latitudeOfLastGridPointInDegrees',
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'longitudeOfLastGridPointInDegrees',
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]
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while 1:
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gid = grib_new_from_file(f)
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if gid is None: break
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for key in keys:
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if not grib_is_defined(gid,key): raise Exception("Key was not defined")
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print '%s=%s' % (key,grib_get(gid,key))
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if grib_is_defined(gid,"A_very_silly_girl"): raise Exception("Key was defined")
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print 'There are %d values, average is %f, min is %f, max is %f' % (
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grib_get_size(gid,'values'),
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grib_get(gid,'average'),
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grib_get(gid,'min'),
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grib_get(gid,'max')
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)
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grib_release(gid)
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f.close()
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def main():
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try:
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example()
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except GribInternalError,err:
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if VERBOSE:
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traceback.print_exc(file=sys.stderr)
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else:
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print >>sys.stderr,err.msg
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return 1
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if __name__ == "__main__":
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sys.exit(main())
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