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YAML (Yet Another Markup Language) is a language similar to JSON for reading and writing configuration information to files that are human readable. YAML is a superset of JSON. It uses indentation instead of the braces used by JSON. To be able to deal with YAML in Python, install the package: $ sudo pip install PyYAML $ sudo pip3 install PyYAML. Similar to JSON, YAML file can be directly loaded into a Python list or dict, depending on whether the root structure of the file is a list or a dict: import yaml y = yaml.load(open('foobar.yaml')).
Nov 23, 2017 - It is very easy to read a YAML file in Python as a combination of dict and lists using PyYAML. However, the YAML format does not require PyYAML to read the keys of any dict in the YAML file to be read in the order it appears in the file.
Writing a Python structure back to a YAML is similarly straightforward: yaml.dump(y, open('foobar.yaml', 'w')). Note that the YAML file is written in flow style by default.
This makes it look a bit like JSON. For human readability, it might be better to dump in block style, like this: yaml.dump(y, open('foobar.yaml', 'w'), defaultflowstyle=False) Tried with: PyYAML 3.11, Python 3.5.2 and Ubuntu 16.04.
YAML may be the most human friendly format for structured data invented so far. YAML examples and usage in notable Python apps YAML is a feature-overcrept language.
Most packages below use its subset. tmuxp -. ansible - and. appengine - and.
salt - Full YAML parsers PyYAML -due to complexity of YAML spec, this is the only package that tried to be compliant. It is C-based.
![Pyyaml Pyyaml](/uploads/1/2/5/6/125633678/264896960.png)
Parsers for YAML subsets Luckily, you may not need the full YAML spec. These libraries can parse only the sweetest parts of YAML spec that you may reuse in your configs. Unfortunately, there doesn't seem to be any Python code that parses YAML subset - pretty much every lib uses PyYAML. But still it worth to list honorable mentions that may be modified to build mininal parsers:. rsolnite -. kivy - and YAML (last edited 2017-08-07 19:45:34 by ).