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python Yaml、Json、Dict之間的轉化

時間：2020-10-19來源：www.outletmksalestore.com作者：電腦系統城

Json To Dict

?

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15 import json

jsonData = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
print(jsonData)
print(type(jsonData))
text = json.loads(jsonData)
print(text)
print(type(text))

#######################
{"a":1,"b":2,"c":3,"d":4,"e":5}
<class 'str'>
{'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
<class 'dict'>

Dict To Json

?

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15 import json
textDict = {"a":1,"b":2,"c":3,"d":4,"e":5}
print(textDict)
print(type(textDict))
# 字典轉化為json
textJson = json.dumps(textDict)
print(textJson)
print(type(textJson))

########################

{'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
<class 'dict'>
{"a": 1, "b": 2, "c": 3, "d": 4, "e": 5}
<class 'str'>

Dict To Yaml

?

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46 import yaml

dictText = {
"apiVersion": "rbac.authorization.k8s.io/v1",
"kind": "ClusterRoleBinding",
"metadata": {
"name": "admin-user"
},
"roleRef": {
"apiGroup": "rbac.authorization.k8s.io",
"kind": "ClusterRole",
"name": "cluster-admin"
},
"subjects": [
{
"kind": "ServiceAccount",
"name": "admin-user",
"namespace": "kube-system"
}
]
}

print(type(dictText))

yamlText = yaml.dump(dictText)
print(yamlText)
print(type(yamlText))

#############################3

<class 'dict'>
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system

<class 'str'>

Json To Yaml

Json -> Dict -> Yaml

?

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28 import json,yaml

jsonData = '{"listDict":{"a":1,"b":2,"c":3,"d":4,"e":5}}';
print(jsonData)
print(type(jsonData))
# Json -> Dict
text = json.loads(jsonData)
print(text)
print(type(text))
# Dict -> Yaml
textYaml = yaml.dump(text)
print(textYaml)
print(type(textYaml))

#############################

{"listDict":{"a":1,"b":2,"c":3,"d":4,"e":5}}
<class 'str'>
{'listDict': {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}}
<class 'dict'>
listDict:
a: 1
b: 2
c: 3
d: 4
e: 5

<class 'str'>

Yaml -> Dict

?

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43 import yaml

yamlText ='''
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system'''

print(yamlText)
print(type(yamlText))
# Yaml -> Dict
dictText = yaml.load(yamlText,Loader=yaml.FullLoader)
print(dictText)
print(type(dictText))

#############################

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system
<class 'str'>
{'apiVersion': 'rbac.authorization.k8s.io/v1', 'kind': 'ClusterRoleBinding', 'metadata': {'name': 'admin-user'}, 'roleRef': {'apiGroup': 'rbac.authorization.k8s.io', 'kind': 'ClusterRole', 'name': 'cluster-admin'}, 'subjects': [{'kind': 'ServiceAccount', 'name': 'admin-user', 'namespace': 'kube-system'}]}
<class 'dict'>

import yaml

yamlText ='''
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
 name: admin-user
roleRef:
 apiGroup: rbac.authorization.k8s.io
 kind: ClusterRole
 name: cluster-admin
subjects:
- kind: ServiceAccount
 name: admin-user
 namespace: kube-system'''

print(yamlText)
print(type(yamlText))
# Yaml -> Dict
dictText = yaml.load(yamlText,Loader=yaml.FullLoader)
print(dictText)
print(type(dictText))

#############################

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
 name: admin-user
roleRef:
 apiGroup: rbac.authorization.k8s.io
 kind: ClusterRole
 name: cluster-admin
subjects:
- kind: ServiceAccount
 name: admin-user
 namespace: kube-system
<class 'str'>
{'apiVersion': 'rbac.authorization.k8s.io/v1', 'kind': 'ClusterRoleBinding', 'metadata': {'name': 'admin-user'}, 'roleRef': {'apiGroup': 'rbac.authorization.k8s.io', 'kind': 'ClusterRole', 'name': 'cluster-admin'}, 'subjects': [{'kind': 'ServiceAccount', 'name': 'admin-user', 'namespace': 'kube-system'}]}
<class 'dict'>

關于 yaml -> dict 需要注意

yaml 5.1版本后棄用了yaml.load(file)這個用法，因為覺得很不安全，5.1版本之后就修改了需要指定Loader，通過默認加載??器（FullLoader）禁止執行任意函數

?

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43 import yaml

yamlText ='''
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system'''

print(yamlText)
print(type(yamlText))
# yaml -> dict 沒有設置 ,Loader=yaml.FullLoader 執行后如下含有警告
dictText = yaml.load(yamlText)
print(dictText)
print(type(dictText))

#########################

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system
<class 'str'>
/Users/yyj/Desktop/Project/HelloBike/TimeCalc/pydict2json/dict2json.py:88: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
dictText = yaml.load(yamlText)
{'apiVersion': 'rbac.authorization.k8s.io/v1', 'kind': 'ClusterRoleBinding', 'metadata': {'name': 'admin-user'}, 'roleRef': {'apiGroup': 'rbac.authorization.k8s.io', 'kind': 'ClusterRole', 'name': 'cluster-admin'}, 'subjects': [{'kind': 'ServiceAccount', 'name': 'admin-user', 'namespace': 'kube-system'}]}
<class 'dict'>

import yaml

yamlText ='''
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
 name: admin-user
roleRef:
 apiGroup: rbac.authorization.k8s.io
 kind: ClusterRole
 name: cluster-admin
subjects:
- kind: ServiceAccount
 name: admin-user
 namespace: kube-system'''

print(yamlText)
print(type(yamlText))
# yaml -> dict 沒有設置 ,Loader=yaml.FullLoader 執行后如下含有警告
dictText = yaml.load(yamlText)
print(dictText)
print(type(dictText))

#########################

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
 name: admin-user
roleRef:
 apiGroup: rbac.authorization.k8s.io
 kind: ClusterRole
 name: cluster-admin
subjects:
- kind: ServiceAccount
 name: admin-user
 namespace: kube-system
<class 'str'>
/Users/yyj/Desktop/Project/HelloBike/TimeCalc/pydict2json/dict2json.py:88: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
 dictText = yaml.load(yamlText)
{'apiVersion': 'rbac.authorization.k8s.io/v1', 'kind': 'ClusterRoleBinding', 'metadata': {'name': 'admin-user'}, 'roleRef': {'apiGroup': 'rbac.authorization.k8s.io', 'kind': 'ClusterRole', 'name': 'cluster-admin'}, 'subjects': [{'kind': 'ServiceAccount', 'name': 'admin-user', 'namespace': 'kube-system'}]}
<class 'dict'>

1、警告提示

YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default
Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.

2.主要原因

yaml 5.1版本后棄用了yaml.load(file)這個用法，因為覺得很不安全，5.1版本之后就修改了需要指定Loader，通過默認加載??器（FullLoader）禁止執行任意函數

3.解決方法

1.yaml.load(f, Loader=yaml.FullLoader)

2.yaml.warnings({'YAMLLoadWarning': False}) # 全局設置警告，不推薦

Loader的幾種加載方式

BaseLoader--僅加載最基本的YAML
SafeLoader--安全地加載YAML語言的子集。建議用于加載不受信任的輸入。
FullLoader--加載完整的YAML語言。避免任意代碼執行。這是當前（PyYAML 5.1）默認加載器調用yaml.load(input)（發出警告后）。
UnsafeLoader--（也稱為Loader向后兼容性）原始的Loader代碼，可以通過不受信任的數據輸入輕松利用。

至此，Yaml 、Json 、Dict 之間的轉化介紹完了

以上就是python Yaml 、Json 、Dict 之間的轉化的詳細內容，更多關于python Yaml 、Json 、Dict的資料請關注腳本之家其它相關文章！

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