Dtautils

data_factory

数据处理模块，主要是一些处理字典的函数

`search`

搜索字典中的键值对，如果有多个相同的键，值会被放到一个列表。

参数及其类型

key : str, list, tuple
data : dict

用法：

data = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'name':'find',
        'intro':'find something'
    }
}

print(search('name', data))
# output: ['search', 'find']

print(search(['name','intro'], data))
# output: {'name': ['search', 'find'], 'intro': ['search key/value in dict data', 'find something']}

`update`

更新字典中的键值对。

参数及其类型

update_map : dict
data : dict
target_type : str, tuple

用法：

data = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'name':'find',
        'intro':'find something'
    }
}

print(update({'name': 'PYTHON'}, data=data))
# output: {'name': 'PYTHON', 'intro': 'search key/value in dict data', 'desc': {'name': 'PYTHON', 'intro': 'find something'}}

print(update({'name': 'PYTHON'}, data=data, target_type=int))
# output: {'name': 'search', 'intro': 'search key/value in dict data', 'desc': {'name': 'find', 'intro': 'find something'}}

target_type 字段标明更新字段的类型，默认更新类型：str, bytes, int, float, list, dict，如果字典的值的类型不在更新类型范围内，则不更新值。

`replace`

替换字典中的键值对。

参数及其类型

replace_map : dict
data : dict
replace_key : bool

用法：

data = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'name':'find',
        'intro':'find something'
    }
}

print(replace({'find': 'search'}, data=data))
# output: {'name': 'search', 'intro': 'search key/value in dict data', 'desc': {'name': 'search', 'intro': 'search something'}}

print(replace({'name': 'Name'}, data=data, replace_key=True))
# output: {'Name': 'search', 'intro': 'search key/value in dict data', 'desc': {'Name': 'find', 'intro': 'find something'}}

`strip`

清洗字典

参数及其类型

*args : str
data : dict
strip_key : bool

用法：

data = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'name':'find',
        'intro':'find something'
    }
}

print(strip('key/', 'find', data=data))
# output: {'name': 'search', 'intro': 'search value in dict data', 'desc': {'name': '', 'intro': ' something'}}

print(strip('ame', data=data, strip_key=True))
# output: {'n': 'search', 'intro': 'search key/value in dict data', 'desc': {'n': 'find', 'intro': 'find something'}}

`delete`

删除键值对

参数及其类型

*args : str
data : dict
target_type : str, tuple

用法：

data = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'name':'find',
        'intro':'find something'
    }
}

print(delete('desc', data=data))
# output: {'name': 'search', 'intro': 'search key/value in dict data'}

默认target_key 类型为 str, bytes, int, float, list, dict

`flatten`

展开字典

参数及其类型

data : dict

用法：

data = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'Name':'find',
        'Intro':'find something'
    }
}
print(dict(flatten(data)))
# output: {'name': 'search', 'intro': 'search key/value in dict data', 'Name': 'find', 'Intro': 'find something'}

`merge`

合并字典

参数及其类型

*args : dict
overwrite : bool

用法：

data1 = {
    'name':'search',
    'intro':'search key/value in dict data',
    'desc':{
        'Name':'find',
        'Intro':'find something'
    }
}

data2 = {
    'name':'find',
    'intro':'searching',
    'desc':{
        'Name':'search',
        'Intro':'find something'
    }
}

print(merge(data1, data2))
# output: {'name': ['search', 'find'], 'intro': ['search key/value in dict data', 'searching'], 'desc': {'Name': ['find', 'search'], 'Intro': ['find something', 'find something']}}

print(merge(data1, data2, overwrite=True))
# output: {'name': ['search', 'find'], 'intro': ['search key/value in dict data', 'searching'], 'desc': {'Name': ['find', 'search'], 'Intro': ['find something']}}

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