python3 列表内多个字典 相同项目 值计算合并

Posted 2021-01-07

需求

计算 列表内 名字一样的 value 值

name = [
    {‘name‘: ‘he‘, ‘value‘: 100, ‘ps‘: ‘test1‘},
    {‘name‘: ‘quan‘, ‘value‘: 150, ‘ps‘: ‘test2‘},
    {‘name‘: ‘he‘, ‘value‘: 100, ‘ps‘: ‘test3‘},
    {‘name‘: ‘quan‘, ‘value‘: 200, ‘ps‘: ‘test4‘}
]

代码

pip  install pandas

import pandas as pd

df = pd.DataFrame(name)
cols = [‘name‘, ‘value‘]   
df = df.ix[:, cols]
result = df.groupby([‘name‘]).sum()
dict_country = result.T.to_dict(‘list‘)
print(dict_country)

结果

{‘he‘: [200], ‘quan‘: [350]}