ruamel.yaml

问题 I am using Ruamel to preserve quote styles in human-edited YAML files. I have example input data as: --- a: '1' b: "2" c: 3 I read in data using: def read_file(f): with open(f, 'r') as _f: return ruamel.yaml.round_trip_load(_f.read(), preserve_quotes=True) I then edit that data: data = read_file('in.yaml') data['foo'] = 'bar' I write back to disk using: def write_file(f, data): with open(f, 'w') as _f: _f.write(ruamel.yaml.dump(data, Dumper=ruamel.yaml.RoundTripDumper, width=1024)) write_file

问题 I am using Ruamel to preserve quote styles in human-edited YAML files. I have example input data as: --- a: '1' b: "2" c: 3 I read in data using: def read_file(f): with open(f, 'r') as _f: return ruamel.yaml.round_trip_load(_f.read(), preserve_quotes=True) I then edit that data: data = read_file('in.yaml') data['foo'] = 'bar' I write back to disk using: def write_file(f, data): with open(f, 'w') as _f: _f.write(ruamel.yaml.dump(data, Dumper=ruamel.yaml.RoundTripDumper, width=1024)) write_file

问题 I am using Ruamel to preserve quote styles in human-edited YAML files. I have example input data as: --- a: '1' b: "2" c: 3 I read in data using: def read_file(f): with open(f, 'r') as _f: return ruamel.yaml.round_trip_load(_f.read(), preserve_quotes=True) I then edit that data: data = read_file('in.yaml') data['foo'] = 'bar' I write back to disk using: def write_file(f, data): with open(f, 'w') as _f: _f.write(ruamel.yaml.dump(data, Dumper=ruamel.yaml.RoundTripDumper, width=1024)) write_file

问题 How can I get the comments when I iterate through the YAML object yaml = YAML() with open(path, 'r') as f: yaml_data = yaml.load(f) for obj in yaml_data: # how to get the comments here? This is the source data (an ansible playbook) --- - name: gather all complex custom facts using the custom module hosts: switches gather_facts: False connection: local tasks: # There is a bug in ansible 2.4.1 which prevents it loading # playbook/group_vars - name: ensure we're running a known working version

问题 How can I get the comments when I iterate through the YAML object yaml = YAML() with open(path, 'r') as f: yaml_data = yaml.load(f) for obj in yaml_data: # how to get the comments here? This is the source data (an ansible playbook) --- - name: gather all complex custom facts using the custom module hosts: switches gather_facts: False connection: local tasks: # There is a bug in ansible 2.4.1 which prevents it loading # playbook/group_vars - name: ensure we're running a known working version

来源： https://stackoverflow.com/questions/54820256/how-to-read-load-yaml-parameters-with-leading-zeros-as-a-string

来源： https://stackoverflow.com/questions/54820256/how-to-read-load-yaml-parameters-with-leading-zeros-as-a-string

来源： https://stackoverflow.com/questions/45966633/yaml-error-could-not-determine-a-constructor-for-the-tag

来源： https://stackoverflow.com/questions/45966633/yaml-error-could-not-determine-a-constructor-for-the-tag

问题 There's a good example of sorting at the top level, but how would you recurse the sort at all levels? This seems to work: def sort_commentedmap(self, od): res = ruamel.yaml.comments.CommentedMap() for k in sorted(od): res[k] = od[k] if not isinstance(od[k], ruamel.yaml.comments.CommentedSeq): continue for idx, i in enumerate(od[k]): if isinstance(i, str): res[k][int(idx)] = i else: res[k][int(idx)] = self.sort_commentedmap(i) return res Does this look correct? 回答1: In YAML you can have