larzjson
Friendly JSON — human error messages, pretty-print, and plain-English structure.
The standard library parses JSON fine, but its errors ("Expecting ',' delimiter:
line 3 column 9") stop beginners cold. larzjson wraps stdlib json to point at the
exact spot with a caret, summarise a document's structure in plain English, and
fetch nested values by a dotted path. A learning-and-debugging layer, zero
third-party dependencies.
Install
pip install larzjson
Use
from larzjson import parse, pretty, validate, summarize, get
pretty('{"a":1,"b":[1,2]}') # nicely indented
ok, msg = validate('{"a": 1,}') # (False, message with a ^ under the ,)
summarize('{"name":"Ada","xs":[1,2]}') # "An object with 2 keys: name (string); xs (list of 2)"
get({"user": {"scores": [90, 85]}}, "user.scores.0") # 90
Learn to code with Larz
Part of the learn-to-code toolkit in the Larz stack — see the Learn to Code platform.
Tests
python -m unittest discover -s tests -v # 10 tests
License
MIT (c) larz-scripter
1 maintainer
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