Topic

XML

Older than half the tools that still emit it. Namespaces, XPath and getting rows out of feeds and exports.

XML

SOAP Responses and Pulling the Payload Out With XPath

Take a SOAP envelope apart: Header, Body, the namespaced response and a Fault, then read the price from the payload in Python without a client library.

6 min read

XML

Keeping Both XML and JSON Output From One Source Model

Build one internal model and two small renderers, negotiate the format with the Accept header, and test that both carry the same data on awkward cases.

6 min read

XML

Migrating a Legacy XML Interface to JSON in Safe Steps

A step-by-step plan for moving an XML service to JSON without breaking consumers: freeze, map, run both, measure, announce a date and retire.

6 min read

XML

Moving From XML to JSON Gracefully Without Losing Meaning

Generic converters guess at lists, attributes and mixed text. Write a small mapping with explicit rules so the JSON stays predictable for every record.

6 min read

XML

Converting JSON to XML With Sensible Element Names

JSON keys can be any string and XML names cannot. Make legal names from spaces and leading digits, write arrays as repeated elements, and mark null.

7 min read

XML

Converting XML to JSON and the Attribute Problem Explained

XML has attributes, repeated children and mixed text, and JSON has objects and arrays. Where the mapping is lossy, what xmltodict does, and the fixes.

7 min read

XML

Parsing a Large Wikipedia Style XML Dump From bz2 Directly

Stream a compressed MediaWiki style export with iterparse, skip redirects, count links and text, and keep memory near 24 MB while reading 176 MB of XML.

6 min read

XML

Parsing Tax Style E Invoices and Checking the Totals

Read a UBL style invoice with namespaced lines, recompute each line, sum the net amounts and compare the tax rounded per line with the tax per rate group.

6 min read

XML

Reading a Medical Style HL7 CDA Document Safely With lxml

Extract the patient id and measurements from a synthetic CDA clinical document with a namespace map, handle nullFlavor and disable entity resolution.

6 min read

XML

Parsing a Bank Statement in XML and Reconciling the Balance

Read an ISO 20022 style account statement, apply the credit and debit sign, and check that opening balance plus entries equals the closing balance.

7 min read

XML

Analyzing Publication Metadata From XML Archives in Python

Read thousands of journal article XML files straight from a tar.gz, count by year, journal and author count, rank keywords, and avoid unpacking the archive.

6 min read

CSV

Converting CSV to XML With a Short and Safe Python Script

Convert CSV to XML with the standard library: invalid tag names and control characters need your own checks; a streaming writer does 193,708 rows in 22 MB.

10 min read

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