Finding XML Elements by ID Using lxml Library

This function uses the lxml library to find an element in an XML document by its ID.

Technology Stack : lxml, XML parsing, XPath

Code Type : Function

Code Difficulty : Intermediate

                
                    
def find_element_by_id(xml_doc, element_id):
    # This function uses the lxml library to find an element by its ID in an XML document
    from lxml import etree

    # Parse the XML document
    tree = etree.parse(xml_doc)
    root = tree.getroot()

    # Find the element by ID
    element = root.xpath(f"//*[@id='{element_id}']")

    # Return the element or None if not found
    return element[0] if element else None

# JSON representation of the code