XML
Premature End of Data in Tag and What Usually Caused It
Why XML fails with Premature end of data in tag: truncated downloads, cut gzip streams and empty responses, how each message differs, and what to check.
7 min read
Library
Everything you need to level up your coding skills.
YAML
The Norway Problem and YAML Boolean Surprises Explained
Why the country code NO becomes False in YAML 1.1, how keys collide, which parsers are affected and three fixes: quote, use a 1.2 parser or a schema.
5 min read
JSON
Unexpected Token in JSON at Position 0 and What It Means
An unexpected token error at position 0 means the text is not JSON: usually an HTML error page, the word undefined or an unparsed object. How to tell which.
7 min read
XML
XML Parsing Error Not Well Formed and How to Find the Spot
Read the not well-formed error in ElementTree, lxml and xmllint on a 28.6 MB file: line and column, what the position means and a method to find the cause.
7 min read
JSONGuide
Fixing JSON Parse Errors by Reading the Message Properly
How to read a JSON parse error: what the position means in Python, Node, PHP and jq, twelve common causes, and a method that finds the bad byte fast.
18 min read
XMLGuide
Fixing XML Parse Errors Fast With a Triage Routine
A tested routine for XML that will not parse: check the bytes, then the encoding, then the characters, then the structure, with an error message dictionary.
19 min read
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