Problem 3: Remove Duplicates Based on a Specific Column

Problem Description

Write a Python program that removes duplicate rows based only on a "customer_id" column, even if other columns differ slightly, keeping the first occurrence.

Input

A DataFrame with a "customer_id" column containing some repeated values.

Output

The DataFrame after removing rows with duplicate customer IDs.

Constraints

• None specific.

Example Input

text
{"customer_id": [101, 102, 101], "name": ["Aarav", "Meera", "Aarav K."]}

Example Output

text
   customer_id   name
0          101  Aarav
1          102  Meera

Concepts Covered

drop_duplicates(subset=[...]).