Which Python library must be used to parse the following data structure?

The structure is XML, and ElementTree is the Python library among the choices that is designed to parse and navigate XML documents. Python’s xml.etree.ElementTree module converts the document into a tree of element objects. The root element is ciscopress; book is a child element with the isbn attribute; and elements such as title, author, year, edition, and price can be located by tag and their text values retrieved. ElementTree can parse XML from a string or file, iterate through repeated records, read attributes, and use supported XPath-style searches. Cisco’s own DCNM programmable-report documentation represents returned XML as an xml.etree.ElementTree object and uses that tree for tag and node-value operations, which directly supports this selection. The yaml library processes YAML syntax, whose indentation and key-value structure are not present here. The json library expects JSON objects and arrays delimited by braces and brackets, not opening and closing XML tags. openpyxl reads and writes Microsoft Excel .xlsx workbooks; although those files internally contain XML, openpyxl is not a general XML parser for an arbitrary document such as this one. ElementTree therefore matches both the serialization format and the required operation. A typical implementation would import xml.etree.ElementTree as ET, call ET.fromstring() or ET.parse(), and traverse the resulting element hierarchy. Cisco DCNM programmable-report XML API

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