2885. Rename Columns

DataFrame students

Column Name	Type
id	int
first	object
last	object
age	int

Instructions

• 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

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.

Submissions

import pandas as pd

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

Explanation

Python (Pandas)

Submitted by @noeyislearning

• import pandas as pd: Import the pandas library to work with DataFrames.
• def renameColumns(students: pd.DataFrame) -> pd.DataFrame:: Define a function called renameColumns that takes a DataFrame students as input and returns a DataFrame.
• return students.rename(columns={...}): Rename the columns of the DataFrame using a dictionary where the keys are the original column names and the values are the new column names.