{"id":2205,"date":"2022-07-07T15:14:31","date_gmt":"2022-07-07T10:14:31","guid":{"rendered":"https:\/\/www.edopedia.com\/blog\/?p=2205"},"modified":"2022-07-07T15:14:33","modified_gmt":"2022-07-07T10:14:33","slug":"modify-update-yaml-files-using-python3-ruamel-yaml","status":"publish","type":"post","link":"https:\/\/www.edopedia.com\/blog\/modify-update-yaml-files-using-python3-ruamel-yaml\/","title":{"rendered":"Modify\/Update YAML Files Using Python 3 & ruamel.yaml"},"content":{"rendered":"\n

If you want to preserve the order of your mapping keys, the white space between the elements of the root-level sequence, and the comment, e.g. because this file is under revision control, then I would highly suggest you use ruamel.yaml<\/code><\/p>\n\n\n\n

pip install ruamel.yaml<\/pre><\/div>\n\n\n\n
Write your YAML code in a file called input.yaml<\/code>. We are using this file inside our code.<\/p>\n\n\n\n
code.py<\/h2>\n\n\n\n
import sys\nimport ruamel.yaml\n\nyaml = ruamel.yaml.YAML()\n# yaml.preserve_quotes = True\nwith open('input.yaml') as fp:\n    data = yaml.load(fp)\nfor elem in data:\n    if elem['name'] == 'sense2':\n         elem['value'] = 1234\n         break  # no need to iterate further\nyaml.dump(data, sys.stdout)<\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"
If you want to preserve the order of your mapping keys, the white space between the elements of the root-level sequence, and the comment, e.g. because this file is under revision control, then I would highly suggest you use ruamel.yaml Write your YAML code in a file called input.yaml. We are using this file inside … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":1762,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112],"tags":[],"class_list":["post-2205","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials"],"yoast_head":"\nModify\/Update YAML Files Using Python 3 & ruamel.yaml<\/title>\n<meta name=\"description\" content=\"If you want to preserve the order of your mapping keys, the white space between the elements of the root-level sequence, and the comment, e.g. because\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.edopedia.com\/blog\/modify-update-yaml-files-using-python3-ruamel-yaml\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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