eccodes/examples/python/grib_multi_write.py

55 lines
1.2 KiB
Python

#
# Copyright 2005-2017 ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
#
# In applying this licence, ECMWF does not waive the privileges and immunities
# granted to it by virtue of its status as an intergovernmental organisation
# nor does it submit to any jurisdiction.
#
import traceback
import sys
from eccodes import *
INPUT = '../../data/sample.grib2'
OUTPUT = 'out.mw.grib'
VERBOSE = 1 # verbose error reporting
def example():
fin = open(INPUT)
fout = open(OUTPUT, 'w')
gid = codes_grib_new_from_file(fin)
mgid = codes_grib_multi_new()
for step in range(12, 132, 12):
codes_set(gid, "step", step)
codes_grib_multi_append(gid, 4, mgid)
codes_grib_multi_write(mgid, fout)
codes_grib_multi_release(mgid)
codes_release(gid)
fin.close()
fout.close()
def main():
try:
example()
except CodesInternalError as err:
if VERBOSE:
traceback.print_exc(file=sys.stderr)
else:
sys.stderr.write(err.msg + '\n')
return 1
if __name__ == "__main__":
sys.exit(main())