Rename Columns

2885. Rename Columns

DataFrame students
+-------------+--------+
| Column Name | Type   |
+-------------+--------+
| id          | int    |
| first       | object |
| last        | object |
| age         | int    |
+-------------+--------+

Write a solution to rename the columns as follows:

id to student_id
first to first_name
last to last_name
age to age_in_years

The result format is in the following example.

Example 1:
Input:
+----+---------+----------+-----+
| id | first   | last     | age |
+----+---------+----------+-----+
| 1  | Mason   | King     | 6   |
| 2  | Ava     | Wright   | 7   |
| 3  | Taylor  | Hall     | 16  |
| 4  | Georgia | Thompson | 18  |
| 5  | Thomas  | Moore    | 10  |
+----+---------+----------+-----+
Output:
+------------+------------+-----------+--------------+
| student_id | first_name | last_name | age_in_years |
+------------+------------+-----------+--------------+
| 1          | Mason      | King      | 6            |
| 2          | Ava        | Wright    | 7            |
| 3          | Taylor     | Hall      | 16           |
| 4          | Georgia    | Thompson  | 18           |
| 5          | Thomas     | Moore     | 10           |
+------------+------------+-----------+--------------+
Explanation: 
The column names are changed accordingly.

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import pandas as pd def renameColumns(students: pd.DataFrame) -> pd.DataFrame:

pythondata 解法, 执行用时: 268 ms, 内存消耗: 59.1 MB, 提交时间: 2023-10-07 10:38:52

'''
重命名列名
'''
import pandas as pd

def renameColumns(students: pd.DataFrame) -> pd.DataFrame:
    students = students.rename(columns={
        'id': 'student_id',
        'first': 'first_name',
        'last': 'last_name',
        'age': 'age_in_years'}
    )
    return students

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