Merge Customer and Purchase Data Using Pandas
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Scenario

Customer information and purchase history are stored in separate CSV files and need to be combined for analysis.

Task

Write a Python script at /home/interview/merge_data.py using pandas that performs a left join on /home/interview/customers.csv and /home/interview/purchases.csv using customer_id as the join key, and saves the result to /home/interview/combined_data.csv.

Note: pandas is already installed.

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