需要在Python中reshape 转置数据帧

我有以下数据帧，我想转置它，以便列"Trans_Type"中的元素成为表示列"Trans_Amount"中的值的新列.

import pandas as pd
import numpy as np

df = pd.DataFrame([['21/10/2023','1','CR',2323],
                    ['21/10/2023','1','CR',23],
                    ['21/10/2023','1','DR',65],
                    ['21/10/2023','2','CR',3.3],
                    ['21/10/2023','3','CR',56],      
                    ['21/10/2023','3','DR',23.66],
                    ['21/10/2023','4','CR',54.34],
                    ['22/10/2023','4','CR',23.34],
                    ['22/10/2023','4','DR',5.5]],
columns = ['Date','Account_Number','Trans_Type','Trns_Amount'])
df

Df输出:

    Date        Account_Number  Trans_Type  Trns_Amount
0   21/10/2023  1               CR          2323.00
1   21/10/2023  1               CR          23.00
2   21/10/2023  1               DR          65.00
3   21/10/2023  2               CR          3.30
4   21/10/2023  3               CR          56.00
5   21/10/2023  3               DR          23.66
6   21/10/2023  4               CR          54.34
7   22/10/2023  4               CR          23.34
8   22/10/2023  4               DR          5.5

预期输出:

    Date        Account_Number    CR      DR
0   21/10/2023  1                 2323.00 NaN
1   21/10/2023  1                 23.00   NaN
2   21/10/2023  1                 NaN     65.00
3   21/10/2023  2                 3.30    NaN
4   21/10/2023  3                 56.00   NaN
5   21/10/2023  3                 NaN     23.66
6   21/10/2023  4                 54.34   NaN
7   22/10/2023  4                 23.34   NaN
8   22/10/2023  4                 NaN     5.50

任何帮助都是最好的. 谢谢 艾伦