我有一个简单的Python 2.7.12脚本在Linux和OSX上运行,可提供相同的输出。在垃圾场期间使用Ruamel时,布尔值的值似乎转换为所有小写。作为测试,当字段转换为未引用的字符串时,没有情况转换。
文件: test.yml
namespace: default
testapp_appname: testapp
images:
testapp:
path: "foo/testapp"
tag: "202120810083053-1.2.3"
testapp_replicas: 1
testapp_monitoring_enabled: False
testapp_node_selector: ""
我的简单测试脚本:
import ruamel
import sys
from ruamel.yaml import YAML
yaml = YAML()
def main():
config_path = "test.yml"
image = "testapp"
timestamp = "202120810083053-"
version = "1.2.3"
config = ruamel.yaml.round_trip_load(open(config_path), preserve_quotes=True)
config['images'][image]['tag'] = "{}{}".format(timestamp, version)
ruamel.yaml.round_trip_dump(config, sys.stdout)
if __name__ == "__main__":
main()
输入:
testapp_monitoring_enabled: False
输出:
testapp_monitoring_enabled: false
您将新的API(yaml = YAML()
)与旧的API(ruamel.yaml.round_trip_dump()
)混合在一起,这是可能的,但不是必需的(也不建议)。
ruamel.yaml
不能保留布尔值的外壳( False
, FALSE
),但是可以使用boolean_rementation属性在转储中设置使用的值(这当然会影响所有booleans):
import sys
from ruamel.yaml import YAML
yaml = YAML()
yaml.preserve_quotes = True
yaml.boolean_representation = ['False', 'True']
def main():
config_path = "test.yml"
image = "testapp"
timestamp = "202120810083053-"
version = "1.2.3"
config = yaml.load(open(config_path))
config['images'][image]['tag'] = "{}{}".format(timestamp, version)
yaml.dump(config, sys.stdout)
if __name__ == "__main__":
main()
会得到您:
namespace: default
testapp_appname: testapp
images:
testapp:
path: "foo/testapp"
tag: "202120810083053-1.2.3"
testapp_replicas: 1
testapp_monitoring_enabled: False
testapp_node_selector: ""