python - 将 Pandas DataFrame 转换为字典

Question

我有一个简单的DataFrame:

      Name Format
0    cntry    int
1  dweight    str
2  pspwght    str
3  pweight    str
4   nwspol    str

我想要这样的字典:

{
    "cntry":"int",
    "dweight":"str",
    "pspwght":"str",
    "pweight":"str",
    "nwspol":"str"
}

dict["cntry"] 将返回 int 或 dict["dweight"] 将返回 str.

我该怎么做？

Answer 1

这个怎么样:

import pandas as pd

df = pd.DataFrame({'col_1': ['A', 'B', 'C', 'D'], 'col_2': [1, 1, 2, 3], 'col_3': ['Bla', 'Foo', 'Sup', 'Asdf']})

res_dict = dict(zip(df['col_1'], df['col_3']))

res_dict 的内容:

{'A': 'Bla', 'B': 'Foo', 'C': 'Sup', 'D': 'Asdf'}