Install
pip install pyyaml
Basic Example
import yaml
result = yaml.load(yaml_string) # to python list or dict
string = yaml.dump(py_object)
# NOTE: unlike the json module, the method here is load/dump, not loads/dumps
Yaml
YAML uses three dashes (“—”) to separate documents within a stream. Three dots ( “…”) indicate the end of a document without starting a new one, for use in communication channels.
empty string in yaml is ” or “”, if you have a blank entry, it will be converted to None
you don’t need to quote strings in yaml
for dumping, when dumping to a file, do this
with open('file.yml', 'w') as f:
yaml.dump(data, f, default_flow_style=False, allow_unicode=True)
yaml 中还可以通过 &
Reference
- https://stackoverflow.com/questions/45805380/meaning-of-ampersand-in-docker-compose-yml-file