mirror of https://github.com/ecmwf/eccodes.git
55 lines
1.1 KiB
Python
55 lines
1.1 KiB
Python
#
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# Copyright 2005-2017 ECMWF.
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#
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# This software is licensed under the terms of the Apache Licence Version 2.0
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# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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#
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# In applying this licence, ECMWF does not waive the privileges and immunities
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# granted to it by virtue of its status as an intergovernmental organisation
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# nor does it submit to any jurisdiction.
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#
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# Python implementation: get_message_offset
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#
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# Description: how to get the message offset
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#
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import traceback
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import sys
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from eccodes import *
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VERBOSE = 1 # verbose error reporting
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def example():
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if len(sys.argv) < 2:
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print >>sys.stderr, 'Usage: ', sys.argv[0], ' file'
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sys.exit(1)
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f = open(sys.argv[1])
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while 1:
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id = codes_grib_new_from_file(f)
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if id is None:
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break
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print codes_get_message_offset(id)
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codes_release(id)
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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 CodesInternalError as 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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sys.stderr.write(err.msg + '\n')
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return 1
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if __name__ == "__main__":
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sys.exit(main())
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