PythonizeYAML

A PyYAML-compatible YAML library with lossless round trips.

Read the tutorialBrowse the API

Lossless round trips

Preserve comments, indentation, scalar styles, and document layout while editing values.

PyYAML-compatible API

Load and dump YAML with familiar functions such as load, dump, safe_load, and safe_dump.

Style-aware documents

Use Document to edit comments, tags, anchors, aliases, and formatting on the values themselves.

PythonizeYAML keeps the existing source layout when a document is loaded, edited, and dumped again.

Install

pip install pythonizeyaml

Quick example

import pythonizeyaml as yaml

document = yaml.load("service:\n  port: 8080\n")
document["service"]["port"] = 9090
print(yaml.dump(document))

The tutorial walks through loading, editing, and style-aware editing step by step. The API reference lists exact signatures, arguments, and class members for every public interface.