jsonpath_pyrs

Python Wrapper for Rust crate jsonpath_lib.

Uses rust crates serde and jsonpath_lib to provide a Python api with working JSON path filters.

Install:

From source:

install rust
switch to nightly compiler: rustup override set nightly
pip install bdist_wheel
build wheel python setup.py bdist_wheel
pip install created .whl file

From release:

download from releases version for your os and python version
pip install .whl file

Currently compiled for:

Linux 64 Bit - Python 3.7

Features:

retrieve list of Python Strings, Integers, Floats, Booleans and Lists of those values (1 level max)

NOT implemented:

retrieving whole json objects with expression

Usage:

reading from json string

import jsonpath_pyrs as jp

json_str = '{"books": [{"name": "lord of the rings", "author": "J.R.R. Tolkien"}, {"name": "Harry Potter and the Philosopher\'s Stone", "author": "J.K. Rowling"}]}'
expression = "$.books[?(@.author == 'J.R.R. Tolkien')].name"

value = jp.get_value_from_json_str(json_str, expression)


print(type(value))
print(value)

Output

<class 'str'>
lord of the rings

Reading from json file

Values of 'example.json'

 
{
  "firstName": "John",
  "lastName": "Smith",
  "isAlive": true,
  "age": 27,
  "address": {
    "streetAddress": "21 2nd Street",
    "city": "New York",
    "state": "NY",
    "postalCode": "10021-3100"
  },
  "phoneNumbers": [
    {
      "type": "home",
      "number": "212 555-1234"
    },
    {
      "type": "office",
      "number": "646 555-4567"
    }
  ],
  "children": [],
  "spouse": null
}

Python code

import jsonpath_pyrs as jp

filename = "example.json"
expression = "$.phoneNumbers[*].number"

value = jp.read_values_from_file(filename, expression)


print(type(value))
print(value)

Output

<class 'list'>
['212 555-1234', '646 555-4567']

mdq-noppera/jsonpath-pyrs