The csv module in Python

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The csv module in Python provides functionality to both read from and write to CSV (Comma-Separated Values) files, which are commonly used for the storage and exchange of tabular data between programs and systems. This module supports various CSV formats and interfaces that allow you to read and write rows of data sequentially. CSV files are straightforward text files where each line corresponds to a data record. Each record consists of fields, which are separated by commas.

Overview of the CSV Module

The csv module simplifies handling CSV files and includes functions and classes designed to allow consistent and efficient processing. It includes reader and writer objects for reading from and writing to CSV files, as well as helper functions to quickly load data and handle CSV data in a standardized way.

Example 1: Reading a CSV File

This example demonstrates how to read a CSV file using the csv.reader object, which iterates over lines in the CSV file and converts them into lists of columns.

import csv

# Example CSV file path
file_path = 'example.csv'

# Opening the CSV file
with open(file_path, mode='r', newline='') as file:
    reader = csv.reader(file)

    # Reading the header
    header = next(reader)
    print('Header:', header)

    # Reading each row of…