XML Nesting Format Using CSV Through Python

What will you learn?

In this tutorial, you will master the art of converting data from a CSV file into an XML format effortlessly using Python. This skill is crucial for seamless data exchange between systems or applications that utilize these formats.

Introduction to the Problem and Solution

The challenge of transforming data stored in a CSV file into an XML format often arises when interoperability between different systems is required. This tutorial offers a robust solution by leveraging Python to automate the conversion process efficiently. By following this guide, you will enhance your data handling capabilities and streamline your workflow.


import csv
import xml.etree.ElementTree as ET

def csv_to_xml(csv_file_path, xml_file_path):
    with open(csv_file_path, 'r') as csvfile:
        reader = csv.DictReader(csvfile)
        headers = reader.fieldnames

        root = ET.Element('data')

        for row in reader:
            entry = ET.SubElement(root, 'entry')
            for header in headers:
                field = ET.SubElement(entry, header)
                field.text = row[header]

        tree = ET.ElementTree(root)

# Example Usage
csv_to_xml('data.csv', 'data.xml')

# Copyright PHD


  • Import Libraries: We import csv to read the CSV file and xml.etree.ElementTree module to create an XML structure.
  • Define Function: The csv_to_xml() function converts CSV data into XML format.
  • Read CSV File: Extract headers from the CSV file.
  • Create Root Element: Create the root element named data.
  • Iterate Over Rows: Generate an entry element for each row in the CSV.
  • Add Fields: Populate fields under each entry with corresponding values from the row.
  • Write to XML File: Save the structured XML data to an output XML file.
    How can I install missing libraries like xml.etree.ElementTree?

    You can install missing libraries using pip by running pip install library_name.

    Can I customize the XML structure based on my requirements?

    Yes, you can modify the code inside csv_to_xml() function according to your desired XML structure.

    Is there a limit on how large my input CSV files can be?

    Python’s capabilities depend on system resources; however, it is generally suitable for handling large files efficiently.

    Can I convert multiple CSV files at once using this script?

    You can call csv_to_xml() function multiple times with different input/output paths to convert multiple files sequentially.

    How do I handle special characters or encoding issues during conversion?

    Specify encoding parameters while reading/writing files based on specific requirements or use appropriate encoding/decoding functions.


    Converting data from a CSV format into structured XML through Python empowers users with effective management of diverse datasets. This tutorial equips you with valuable skills to seamlessly transform data between commonly used interchange formats. Enhance your automation capabilities and elevate your data handling proficiency by mastering this conversion technique.

    Leave a Comment