mirror of
https://github.com/openvswitch/ovs
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8ea171aba0
The print statement from Python 2 is a function in Python 3. Enable print function support for Python 2 and convert print statements to function calls. Enable the H233 flake8 warning. If the hacking plugin is installed, this will generate warnings for print statement usage not compatible with Python 3. H233 Python 3.x incompatible use of print operator Signed-off-by: Russell Bryant <russell@ovn.org> Acked-by: Ben Pfaff <blp@ovn.org>
99 lines
2.5 KiB
Python
99 lines
2.5 KiB
Python
# Copyright (c) 2009, 2010 Nicira, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import codecs
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import getopt
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import sys
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import ovs.json
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def print_json(json):
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if type(json) in [str, unicode]:
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print("error: %s" % json)
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return False
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else:
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ovs.json.to_stream(json, sys.stdout)
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sys.stdout.write("\n")
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return True
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def parse_multiple(stream):
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buf = stream.read(4096)
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ok = True
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parser = None
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while len(buf):
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if parser is None and buf[0] in " \t\r\n":
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buf = buf[1:]
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else:
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if parser is None:
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parser = ovs.json.Parser()
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n = parser.feed(buf)
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buf = buf[n:]
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if len(buf):
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if not print_json(parser.finish()):
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ok = False
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parser = None
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if len(buf) == 0:
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buf = stream.read(4096)
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if parser and not print_json(parser.finish()):
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ok = False
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return ok
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def main(argv):
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argv0 = argv[0]
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# Make stdout and stderr UTF-8, even if they are redirected to a file.
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sys.stdout = codecs.getwriter("utf-8")(sys.stdout)
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sys.stderr = codecs.getwriter("utf-8")(sys.stderr)
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try:
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options, args = getopt.gnu_getopt(argv[1:], '', ['multiple'])
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except getopt.GetoptError as geo:
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sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
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sys.exit(1)
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multiple = False
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for key, value in options:
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if key == '--multiple':
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multiple = True
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else:
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sys.stderr.write("%s: unhandled option %s\n" % (argv0, key))
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sys.exit(1)
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if len(args) != 1:
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sys.stderr.write("usage: %s [--multiple] INPUT.json\n" % argv0)
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sys.exit(1)
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input_file = args[0]
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if input_file == "-":
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stream = sys.stdin
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else:
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stream = open(input_file, "r")
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if multiple:
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ok = parse_multiple(stream)
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else:
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ok = print_json(ovs.json.from_stream(stream))
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if not ok:
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sys.exit(1)
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if __name__ == '__main__':
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main(sys.argv)
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