eccodes/examples/python/bufr_ecc-448.py

77 lines
1.8 KiB
Python

# (C) Copyright 2005- 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 sys
import traceback
from eccodes import *
INPUT = "../../data/bufr/syno_1.bufr"
VERBOSE = 1 # verbose error reporting
def example():
# open bufr file
f = open(INPUT, "rb")
cnt = 0
# loop for the messages in the file
while 1:
# get handle for message
bufr = codes_bufr_new_from_file(f)
if bufr is None:
break
print("message: %s" % cnt)
# ECC-448: create a new BUFR handle from the message
# of the original
the_message = codes_get_message(bufr)
newbufr = codes_new_from_message(the_message)
codes_set(newbufr, "unpack", 1)
# get BUFR key iterator
iterid = codes_bufr_keys_iterator_new(newbufr)
# loop over the keys
while codes_bufr_keys_iterator_next(iterid):
# print key name
keyname = codes_bufr_keys_iterator_get_name(iterid)
print(" %s" % keyname)
# delete the key iterator
codes_bufr_keys_iterator_delete(iterid)
cnt += 1
# delete handle
codes_release(bufr)
# close the file
f.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())