ruamel_yaml_clib_fast_parser_emitter_quickstart.py

1import sys
2from ruamel.yaml import YAML
3
4# ruamel.yaml.clib provides the C-based scanner/parser/emitter.
5# To use it, you initialize the YAML object with typ='libyaml'.
6# This automatically utilizes the clib backend for performance.
7yaml = YAML(typ='libyaml')
8
9data = {
10    'a': 1,
11    'b': [2, 3],
12    'c': {'d': 4, 'e': 5}
13}
14
15# Example: Dumping data to stdout using the C-based emitter
16print("--- Encoded YAML ---")
17yaml.dump(data, sys.stdout)
18
19# Example: Loading data using the C-based parser
20yaml_string = """
21name: Example
22items:
23  - id: 1
24    value: foo
25  - id: 2
26    value: bar
27"""
28
29parsed_data = yaml.load(yaml_string)
30print("\n--- Parsed Data ---")
31print(parsed_data)