JSON is very standard. YAML, a superset of JSON, is very readable. Got something that needs JSON, and want to write the input in YAML? Use yaml2json. Have JSON and want to view it in a more readable format? Use json2yaml.
Use with files or stdin/stdout. Pretty-print the JSON if you want.
Requires pyyaml (via pip or easy_install), aka the python-yaml Ubuntu package.
A version of these files is available at tinyurl/json2yaml and tinyurl.com/yaml2json for you to wget or curl -L
| #!/usr/bin/env python | |
| # The MIT License (MIT) | |
| # Copyright (c) 2015 Ben Kehoe | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy | |
| # of this software and associated documentation files (the "Software"), to deal | |
| # in the Software without restriction, including without limitation the rights | |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| # copies of the Software, and to permit persons to whom the Software is | |
| # furnished to do so, subject to the following conditions: | |
| # The above copyright notice and this permission notice shall be included in | |
| # all copies or substantial portions of the Software. | |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| # THE SOFTWARE. | |
| # Updates at https://gist.github.com/benkehoe/7b6df9613d2a0bb5d434 | |
| import sys | |
| import yaml | |
| import yaml.constructor as yamlc | |
| import json | |
| import optparse | |
| usage = """Usage: %prog INPUT_FILE [OUTPUT_FILE] | |
| %prog [--input INPUT_FILE] [--output OUTPUT_FILE] | |
| Convert JSON into YAML. With positional arguments, an input filename must | |
| be given. If no output file is given, the YAML will be sent to stdout. | |
| With named arguments, if --input is not given, the JSON will be read from | |
| stdin, and if --output is not given, the YAML will be written to stdout. | |
| Since JSON is valid YAML, and is already in the most compact YAML style, | |
| this program is meant to output YAML in the block style for readability and | |
| inspection purposes.""" | |
| parser = optparse.OptionParser(usage=usage) | |
| parser.add_option('-i', '--input', metavar='FILE') | |
| parser.add_option('-o', '--output', metavar='FILE') | |
| options, args = parser.parse_args() | |
| if len(args) >= 3: | |
| parser.exit(1, 'Too many inputs!\n') | |
| if args and (options.input or options.output): | |
| parser.exit(1, "Can't specify both args and options\n") | |
| def open_file(name, mode): | |
| try: | |
| return open(name, mode, 1) | |
| except: | |
| parser.exit(2, "Could not open file %s\n" % name) | |
| if options.input: | |
| input = open_file(options.input,'r') | |
| elif len(args) >= 1: | |
| input = open_file(args[0],'r') | |
| else: | |
| input = sys.stdin | |
| if options.output: | |
| out = open_file(options.output,'w') | |
| elif len(args) == 2: | |
| out = open_file(args[1],'w') | |
| else: | |
| out = sys.stdout | |
| indent = 2 | |
| with input, out: | |
| try: | |
| value = json.load(input) | |
| yaml.safe_dump(value, out, indent=indent, default_style=None, default_flow_style=False) | |
| out.write('\n') | |
| except: | |
| import traceback | |
| traceback.print_exception(*sys.exc_info()) | |
| sys.exit(3) | |
| sys.exit(0) |
| #!/usr/bin/env python | |
| # The MIT License (MIT) | |
| # Copyright (c) 2015 Ben Kehoe | |
| # Permission is hereby granted, free of charge, to any person obtaining a copy | |
| # of this software and associated documentation files (the "Software"), to deal | |
| # in the Software without restriction, including without limitation the rights | |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| # copies of the Software, and to permit persons to whom the Software is | |
| # furnished to do so, subject to the following conditions: | |
| # The above copyright notice and this permission notice shall be included in | |
| # all copies or substantial portions of the Software. | |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| # THE SOFTWARE. | |
| # Updates at https://gist.github.com/benkehoe/7b6df9613d2a0bb5d434 | |
| import sys | |
| import yaml | |
| import yaml.constructor as yamlc | |
| import json | |
| import optparse | |
| yamlc.SafeConstructor.add_constructor(u'tag:yaml.org,2002:timestamp', yamlc.SafeConstructor.construct_yaml_str) | |
| def construct_yaml_set(self, node): | |
| data = [] | |
| yield data | |
| value = self.construct_mapping(node) | |
| data.extend(value.keys()) | |
| yamlc.SafeConstructor.add_constructor(u'tag:yaml.org,2002:set', construct_yaml_set) | |
| usage = """Usage: %prog [--pretty] INPUT_FILE [OUTPUT_FILE] | |
| %prog [--pretty] [--input INPUT_FILE] [--output OUTPUT_FILE] | |
| Convert YAML into JSON. With positional arguments, an input filename must | |
| be given. If no output file is given, the JSON will be sent to stdout. | |
| With named arguments, if --input is not given, the YAML will be read from | |
| stdin, and if --output is not given, the JSON will be written to stdout. | |
| The two standard YAML types not directly representable in JSON are timestamp | |
| and set. The exact string given in the YAML for a timestamp is stored in the | |
| JSON. Sets are converted to lists.""" | |
| parser = optparse.OptionParser(usage=usage) | |
| parser.add_option('-i', '--input', metavar='FILE') | |
| parser.add_option('-o', '--output', metavar='FILE') | |
| parser.add_option('-p', '--pretty', action='store_true', default=False, help='Pretty-print JSON for easier readability') | |
| options, args = parser.parse_args() | |
| if len(args) >= 3: | |
| parser.exit(1, 'Too many inputs!\n') | |
| if args and (options.input or options.output): | |
| parser.exit(1, "Can't specify both args and options\n") | |
| def open_file(name, mode): | |
| try: | |
| return open(name, mode, 1) | |
| except: | |
| parser.exit(2, "Could not open file %s\n" % name) | |
| if options.input: | |
| input = open_file(options.input,'r') | |
| elif len(args) >= 1: | |
| input = open_file(args[0],'r') | |
| else: | |
| input = sys.stdin | |
| if options.output: | |
| out = open_file(options.output,'w') | |
| elif len(args) == 2: | |
| out = open_file(args[1],'w') | |
| else: | |
| out = sys.stdout | |
| indent = 2 if options.pretty else None | |
| with input, out: | |
| try: | |
| value = yaml.safe_load(input) | |
| json.dump(value, out, indent=indent) | |
| out.write('\n') | |
| except: | |
| import traceback | |
| traceback.print_exception(*sys.exc_info()) | |
| sys.exit(3) | |
| sys.exit(0) |