如何在python中将字典结构转换为另一个字典答案

【问题标题】：how to convert a dictionary structure to another dictionary in python如何在python中将字典结构转换为另一个字典
【发布时间】：2019-11-17 12:59:10
【问题描述】：

我有下面的字典

#original
data = {
    'cell_0': ['13a'], 'jam_0': ['07-08'], 'model_0': ['SUPERSTAR'], 'output_0': ['10'], 'output_jam_0': [''], 'time_0': [''], 'output_ot_0': [''], 'time_ot_0': [''],
    'cell_1': ['13a'], 'jam_1': ['07-08'], 'model_1': ['SUPERSTAR'], 'output_1': ['20'], 'output_jam_1': [''], 'time_1': [''], 'output_ot_1': [''], 'time_ot_1': [''],
    'cell_2': ['13c'], 'jam_2': ['07-08'], 'model_2': ['SUPERSTAR'], 'output_2': ['40'], 'output_jam_2': [''], 'time_2': [''], 'output_ot_2': [''], 'time_ot_2': [''],
    'cell_3': ['13b'], 'jam_3': ['08-09'], 'model_3': ['SUPERSTAR'], 'output_3': ['30'], 'output_jam_3': [''], 'time_3': [''], 'output_ot_3': [''], 'time_ot_3': [''],
    'cell_4': ['13d'], 'jam_4': ['16-17'], 'model_4': ['SUPERSTAR'], 'output_4': ['40'], 'output_jam_4': [''], 'time_4': [''], 'output_ot_4': [''], 'time_ot_4': [''],
    'cell_5': ['13d'], 'jam_5': ['16-17'], 'model_5': ['SUPERSTAR'], 'output_5': ['40'], 'output_jam_5': [''], 'time_5': [''], 'output_ot_5': [''], 'time_ot_5': [''],
    'cell_6': ['13d'], 'jam_6': ['17-18'], 'model_6': ['SUPERSTAR'], 'output_6': ['10'], 'output_jam_6': [''], 'time_6': [''], 'output_ot_6': [''], 'time_ot_6': [''],
    'cell_7': ['13d'], 'jam_7': ['18-19'], 'model_7': ['SUPERSTAR'], 'output_7': ['60'], 'output_jam_7': [''], 'time_7': [''], 'output_ot_7': [''], 'time_ot_7': [''],
}

我想把我的字典和另一个字典分开。我希望输出是：

#output
data = {
    1: {'cell_0': ['13a'], 'jam_0': ['07-08'], 'model_0': ['SUPERSTAR'], 'output_0': ['10'], 'output_jam_0': [''], 'time_0': [''], 'output_ot_0': [''], 'time_ot_0': ['']},
    2: {'cell_1': ['13a'], 'jam_1': ['07-08'], 'model_1': ['SUPERSTAR'], 'output_1': ['20'], 'output_jam_1': [''], 'time_1': [''], 'output_ot_1': [''], 'time_ot_1': ['']},
    3: {'cell_2': ['13c'], 'jam_2': ['07-08'], 'model_2': ['SUPERSTAR'], 'output_2': ['40'], 'output_jam_2': [''], 'time_2': [''], 'output_ot_2': [''], 'time_ot_2': ['']},
    4: {'cell_3': ['13b'], 'jam_3': ['08-09'], 'model_3': ['SUPERSTAR'], 'output_3': ['30'], 'output_jam_3': [''], 'time_3': [''], 'output_ot_3': [''], 'time_ot_3': ['']},
    5: {'cell_4': ['13d'], 'jam_4': ['16-17'], 'model_4': ['SUPERSTAR'], 'output_4': ['40'], 'output_jam_4': [''], 'time_4': [''], 'output_ot_4': [''], 'time_ot_4': ['']},
    6: {'cell_5': ['13d'], 'jam_5': ['16-17'], 'model_5': ['SUPERSTAR'], 'output_5': ['40'], 'output_jam_5': [''], 'time_5': [''], 'output_ot_5': [''], 'time_ot_5': ['']},
    7: {'cell_6': ['13d'], 'jam_6': ['17-18'], 'model_6': ['SUPERSTAR'], 'output_6': ['10'], 'output_jam_6': [''], 'time_6': [''], 'output_ot_6': [''], 'time_ot_6': ['']},
    8: {'cell_7': ['13d'], 'jam_7': ['18-19'], 'model_7': ['SUPERSTAR'], 'output_7': ['60'], 'output_jam_7': [''], 'time_7': [''], 'output_ot_7': [''], 'time_ot_7': ['']},
}

如何将输出字典转换为原始字典

#convert to original again
data = {
    'cell_0': ['13a'], 'jam_0': ['07-08'], 'model_0': ['SUPERSTAR'], 'output_0': ['10'], 'output_jam_0': [''], 'time_0': [''], 'output_ot_0': [''], 'time_ot_0': [''],
    'cell_1': ['13a'], 'jam_1': ['07-08'], 'model_1': ['SUPERSTAR'], 'output_1': ['20'], 'output_jam_1': [''], 'time_1': [''], 'output_ot_1': [''], 'time_ot_1': [''],
    'cell_2': ['13c'], 'jam_2': ['07-08'], 'model_2': ['SUPERSTAR'], 'output_2': ['40'], 'output_jam_2': [''], 'time_2': [''], 'output_ot_2': [''], 'time_ot_2': [''],
    'cell_3': ['13b'], 'jam_3': ['08-09'], 'model_3': ['SUPERSTAR'], 'output_3': ['30'], 'output_jam_3': [''], 'time_3': [''], 'output_ot_3': [''], 'time_ot_3': [''],
    'cell_4': ['13d'], 'jam_4': ['16-17'], 'model_4': ['SUPERSTAR'], 'output_4': ['40'], 'output_jam_4': [''], 'time_4': [''], 'output_ot_4': [''], 'time_ot_4': [''],
    'cell_5': ['13d'], 'jam_5': ['16-17'], 'model_5': ['SUPERSTAR'], 'output_5': ['40'], 'output_jam_5': [''], 'time_5': [''], 'output_ot_5': [''], 'time_ot_5': [''],
    'cell_6': ['13d'], 'jam_6': ['17-18'], 'model_6': ['SUPERSTAR'], 'output_6': ['10'], 'output_jam_6': [''], 'time_6': [''], 'output_ot_6': [''], 'time_ot_6': [''],
    'cell_7': ['13d'], 'jam_7': ['18-19'], 'model_7': ['SUPERSTAR'], 'output_7': ['60'], 'output_jam_7': [''], 'time_7': [''], 'output_ot_7': [''], 'time_ot_7': [''],
}

【问题讨论】：

标签： python python-3.x dictionary key

【解决方案1】：

不需要使用库，你可以将原始dict转换为输出dict by

result_1 = {}
for k, v in data.items():
    number = int(k[-1])
    if number not in result_1:
        result_1[number] = {}
    result_1[number][k] = v

然后转换回来

result_2 = {}
for v in result_1.values():
    result_2.update(v)

【讨论】：

如果数字是两位数怎么办？还要与 OP 的格式相匹配，您应该更改为 number = int(k[-1]) + 1。除了那个不错的答案！
我有 3 位数字。我有错误，Traceback（最近一次调用最后一次）：文件“C：/Dev/django_project/untitled/tes_data.py”，第 24 行，在 number = int(k[-1])+1 ValueError：基数为 10 的 int() 的无效文字：'h'
如果超过 1 位，使用 k.split('_')[-1] 代替

【解决方案2】：

你可以使用itertools.groupby:

import itertools, re
data = {'cell_0': ['13a'], 'jam_0': ['07-08'], 'model_0': ['SUPERSTAR'], 'output_0': ['10'], 'output_jam_0': [''], 'time_0': [''], 'output_ot_0': [''], 'time_ot_0': [''], 'cell_1': ['13a'], 'jam_1': ['07-08'], 'model_1': ['SUPERSTAR'], 'output_1': ['20'], 'output_jam_1': [''], 'time_1': [''], 'output_ot_1': [''], 'time_ot_1': [''], 'cell_2': ['13c'], 'jam_2': ['07-08'], 'model_2': ['SUPERSTAR'], 'output_2': ['40'], 'output_jam_2': [''], 'time_2': [''], 'output_ot_2': [''], 'time_ot_2': [''], 'cell_3': ['13b'], 'jam_3': ['08-09'], 'model_3': ['SUPERSTAR'], 'output_3': ['30'], 'output_jam_3': [''], 'time_3': [''], 'output_ot_3': [''], 'time_ot_3': [''], 'cell_4': ['13d'], 'jam_4': ['16-17'], 'model_4': ['SUPERSTAR'], 'output_4': ['40'], 'output_jam_4': [''], 'time_4': [''], 'output_ot_4': [''], 'time_ot_4': [''], 'cell_5': ['13d'], 'jam_5': ['16-17'], 'model_5': ['SUPERSTAR'], 'output_5': ['40'], 'output_jam_5': [''], 'time_5': [''], 'output_ot_5': [''], 'time_ot_5': [''], 'cell_6': ['13d'], 'jam_6': ['17-18'], 'model_6': ['SUPERSTAR'], 'output_6': ['10'], 'output_jam_6': [''], 'time_6': [''], 'output_ot_6': [''], 'time_ot_6': [''], 'cell_7': ['13d'], 'jam_7': ['18-19'], 'model_7': ['SUPERSTAR'], 'output_7': ['60'], 'output_jam_7': [''], 'time_7': [''], 'output_ot_7': [''], 'time_ot_7': ['']}
new_data = sorted(data.items(), key=lambda x:int(re.findall('\d+$', x[0])[0]))
r = {a+1:dict(list(b)) for a, b in itertools.groupby(new_data, key=lambda x:int(re.findall('\d+$', x[0])[0]))}

输出：

{1: {'cell_0': ['13a'], 'jam_0': ['07-08'], 'model_0': ['SUPERSTAR'], 'output_0': ['10'], 'output_jam_0': [''], 'time_0': [''], 'output_ot_0': [''], 'time_ot_0': ['']}, 
 2: {'cell_1': ['13a'], 'jam_1': ['07-08'], 'model_1': ['SUPERSTAR'], 'output_1': ['20'], 'output_jam_1': [''], 'time_1': [''], 'output_ot_1': [''], 'time_ot_1': ['']}, 
 3: {'cell_2': ['13c'], 'jam_2': ['07-08'], 'model_2': ['SUPERSTAR'], 'output_2': ['40'], 'output_jam_2': [''], 'time_2': [''], 'output_ot_2': [''], 'time_ot_2': ['']}, 
 4: {'cell_3': ['13b'], 'jam_3': ['08-09'], 'model_3': ['SUPERSTAR'], 'output_3': ['30'], 'output_jam_3': [''], 'time_3': [''], 'output_ot_3': [''], 'time_ot_3': ['']}, 
 5: {'cell_4': ['13d'], 'jam_4': ['16-17'], 'model_4': ['SUPERSTAR'], 'output_4': ['40'], 'output_jam_4': [''], 'time_4': [''], 'output_ot_4': [''], 'time_ot_4': ['']}, 
 6: {'cell_5': ['13d'], 'jam_5': ['16-17'], 'model_5': ['SUPERSTAR'], 'output_5': ['40'], 'output_jam_5': [''], 'time_5': [''], 'output_ot_5': [''], 'time_ot_5': ['']},
 7: {'cell_6': ['13d'], 'jam_6': ['17-18'], 'model_6': ['SUPERSTAR'], 'output_6': ['10'], 'output_jam_6': [''], 'time_6': [''], 'output_ot_6': [''], 'time_ot_6': ['']}, 
 8: {'cell_7': ['13d'], 'jam_7': ['18-19'], 'model_7': ['SUPERSTAR'], 'output_7': ['60'], 'output_jam_7': [''], 'time_7': [''], 'output_ot_7': [''], 'time_ot_7': ['']}}

【讨论】：

Traceback（最近一次调用最后一次）：文件“C:/Dev/django_project/untitled/tes_data.py”，第 30 行，在 new_data = sorted(data_copy.items(), key =lambda x: int(re.findall('\d+$', x[0])[0])) 文件“C:/Dev/django_project/untitled/tes_data.py”，第 30 行，在 new_data = sorted(data_copy.items(), key=lambda x: int(re.findall('\d+$', x[0])[0])) IndexError: list index out of range
@rahmatzaki 请发布引发该错误的数据。