python yaml

# pip install PyYAML

# write to file

f = open('update.yaml', 'w')
   
aproject = {'project1': {'Checksum' : checksum,
                                           'Package': package,
                                           'Version': version}}

yaml.dump(aproject, f, default_flow_style=False)
f.close()

# read and parse from file

f = open('update.yaml')
x = yaml.load(f)
print x

Reference :
PyYAML
yaml简介以及在python上的应用 - 继续迷糊 - ITeye技术网站
How can I create a yaml file from pure python? - Stack Overflow