No more boilerplate to check and build a Python object from JSON.

Related tags

JSONpythonjsontyping
Overview

JSONloader

This module is for you if you're tired of writing boilerplate that:

  • builds a straightforward Python object from loaded JSON.
  • checks that your input-loaded-JSON has all necessary attributes for your pipeline.
  • checks that your input JSON has the right types.

Example

Main intended usage is through the JSONclass decorator, example below:

>> data['d'] = 1 # Let's fix the missing data >>> example = Example(data) # No more error in loading. >>> >>> >>> # We want to ensure we have *only* annotated parameters >>> data = {'a': 'aa', 'b': 'bb', 'c': 1} >>> @JSONclass(annotations=True, annotations_strict=True) ... class Example: ... a : str ... b : int ... >>> try: ... example = Example(data) ... except KeyError: ... print("error - extra 'c'") ... error - extra 'c' >>> del data['c'] # Let's remove unwanted data >>> example = Example(data) # No more error in loading. >>> >>> # We want to ensure we have only annotated parameters and they >>> # are of annotated type. >>> data = {'a': 'aa', 'b': 'bb'} >>> @JSONclass(annotations=True, annotations_strict=True, annotations_type=True) ... class Example: ... a : str ... b : int ... >>> try: ... example = Example(data) ... except TypeError: ... print("error - b is int") ... error - b is int">
>>> from jsonloader import JSONclass
>>> # By default we don't check for anything, we just build the object
>>> # as we received it.
>>> data = {'a': 'aa', 'b': 'bb', 'c': 1}
>>> @JSONclass
... class Example:
...     pass
...
>>> example = Example(data)
>>> example.a
'aa'
>>> example.b
'bb'
>>>
>>> # We want to ensure we have annotated parameters
>>> data = {'a': 'aa', 'b': 'bb', 'c': 1}
>>> @JSONclass(annotations=True)
... class Example:
...     a : str
...     d : int
...
>>> try:
...     example = Example(data)
... except KeyError:
...     print("error - missing 'd'")
...
error - missing 'd'
>>> data['d'] = 1  # Let's fix the missing data
>>> example = Example(data)  # No more error in loading.
>>>
>>>
>>> # We want to ensure we have *only* annotated parameters
>>> data = {'a': 'aa', 'b': 'bb', 'c': 1}
>>> @JSONclass(annotations=True, annotations_strict=True)
... class Example:
...     a : str
...     b : int
...
>>> try:
...     example = Example(data)
... except KeyError:
...     print("error - extra 'c'")
...
error - extra 'c'
>>> del data['c']  # Let's remove unwanted data
>>> example = Example(data)  # No more error in loading.
>>>
>>> # We want to ensure we have only annotated parameters and they
>>> # are of annotated type.
>>> data = {'a': 'aa', 'b': 'bb'}
>>> @JSONclass(annotations=True, annotations_strict=True, annotations_type=True)
... class Example:
...     a : str
...     b : int
...
>>> try:
...     example = Example(data)
... except TypeError:
...     print("error - b is int")
...
error - b is int

Install

User installation

python3 -m virtualenv venv
. venv/bin/activate
pip3 install jsonloader

Developer installation

Github repository currently points to latest development version. Please jump to latest released version tag if you intend to work on PyPI version. For example git checkout tags/0.4.2.

python3 -m virtualenv venv
. venv/bin/activate
pip3 install -e '.[dev]'

Run Tests

# From this repository top directory
nose2 -t . --with-doctest

Tests coverage

For example, leverage coverage module: nose2 -t . -C --coverage-report html

A python library to convert arbitrary strings representing business opening hours into a JSON format that's easier to use in code

A python library to convert arbitrary strings representing business opening hours into a JSON format that's easier to use in code

Adrian Edwards 9 Dec 02, 2022
simdjson : Parsing gigabytes of JSON per second

JSON is everywhere on the Internet. Servers spend a *lot* of time parsing it. We need a fresh approach. The simdjson library uses commonly available SIMD instructions and microparallel algorithms to

16.3k Dec 29, 2022
MOSP is a platform for creating, editing and sharing validated JSON objects of any type.

MONARC Objects Sharing Platform Presentation MOSP is a platform for creating, editing and sharing validated JSON objects of any type. You can use any

CASES Luxembourg 72 Dec 14, 2022
JsonParser - Parsing the Json file by provide the node name

Json Parser This project is based on Parsing the json and dumping it to CSV via

Ananta R. Pant 3 Aug 08, 2022
This open source Python project allow you to create JSON data trees using Minmup.com

This open source Python project allow you to create JSON data trees using Minmup.com. I try to develop this project all the time. But feel free to use :).

Arttu Väisänen 1 Jan 30, 2022
A fast streaming JSON parser for Python that generates SAX-like events using yajl

json-streamer jsonstreamer provides a SAX-like push parser via the JSONStreamer class and a 'object' parser via the ObjectStreamer class which emits t

Kashif Razzaqui 196 Dec 15, 2022
Convert your subscriptions csv file into a valid json for Newpipe!

Newpipe-CSV-Fixer Convert your Google subscriptions CSV file into a valid JSON for Newpipe! Thanks to nikcorg for sharing how to convert the CSV into

Juanjo 44 Dec 29, 2022
A Python application to transfer Zeek ASCII (not JSON) logs to Elastic/OpenSearch.

zeek2es.py This Python application translates Zeek's ASCII TSV logs into ElasticSearch's bulk load JSON format. For JSON logs, see Elastic's File Beat

Corelight, Inc. 28 Dec 22, 2022
JSON for Modern C++ Release Scripts

JSON for Modern C++ Release Scripts Preparations Install required tools: make install_requirements. Add required keys to config.json (apparently not c

Niels Lohmann 4 Sep 19, 2022
A JSON utility library for Python featuring Django-style queries and mutations.

JSON Enhanced JSON Enhanced implements fast and pythonic queries and mutations for JSON objects. Installation You can install json-enhanced with pip:

Collisio Technologies 4 Aug 22, 2022
An tiny CLI to load data from a JSON File during development.

JSON Server - An tiny CLI to load data from a JSON File during development.

Yuvraj.M 4 Mar 22, 2022
JSON Schema validation library

jsonschema A JSON Schema validator implementation. It compiles schema into a validation tree to have validation as fast as possible. Supported drafts:

Dmitry Dygalo 309 Jan 01, 2023
Editor for json/standard python data

Editor for json/standard python data

1 Dec 07, 2021
Ibmi-json-beautify - Beautify json string with python

Ibmi-json-beautify - Beautify json string with python

Jefferson Vaughn 3 Feb 02, 2022
A daily updated JSON dataset of all the Open House London venues, events, and metadata

Open House London listings data All of it. Automatically scraped hourly with updates committed to git, autogenerated per-day CSV's, and autogenerated

Jonty Wareing 4 Jan 01, 2022
Wikidot-forum-dump - Simple Python script that dumps a Wikidot wiki forum into JSON structures.

wikidot-forum-dump Script is partially based on 2stacks by bluesoul: https://github.com/scuttle/2stacks To dump a Wiki's forum, edit config.py and put

ZZYZX 1 Jun 29, 2022
RedisJSON - a JSON data type for Redis

RedisJSON is a Redis module that implements ECMA-404 The JSON Data Interchange Standard as a native data type. It allows storing, updating and fetching JSON values from Redis keys (documents).

3.4k Dec 29, 2022
A Python tool that parses JSON documents using JsonPath

A Python tool that parses JSON documents using JsonPath

8 Dec 18, 2022
Atom, RSS and JSON feed parser for Python 3

Atoma Atom, RSS and JSON feed parser for Python 3. Quickstart Install Atoma with pip: pip install atoma

Nicolas Le Manchet 95 Nov 28, 2022
Convert your JSON data to a valid Python object to allow accessing keys with the member access operator(.)

JSONObjectMapper Allows you to transform JSON data into an object whose members can be queried using the member access operator. Unlike json.dumps in

Owen Trump 4 Jul 20, 2022