python-jsonpath-rw-ext

Extensions for JSONPath RW

This extensions will be proposed upstream and will stay here only if they are refused.

• Free software: Apache license
• Documentation: https://python-jsonpath-rw-ext.readthedocs.org/en/latest/
• Source: http://github.com/sileht/python-jsonpath-rw-ext

Quick Start

At the command line:

$ pip install jsonpath-rw-ext

Or, if you have virtualenvwrapper installed:

$ mkvirtualenv jsonpath-rw-ext
$ pip install jsonpath-rw-ext

Extensions

name	Example
len	$.objects.len
sorted	$.objects.sorted $.objects[\some_field] $.objects[\some_field,/other_field]
filter	$.objects[?(@some_field > 5)] $.objects[?some_field = "foobar")] $.objects[?some_field > 5 & other < 2)]
arithmetic (-+*/)	$.foo + "_" + $.bar $.foo * 12 $.objects[].cow + $.objects[].cat

About arithmetic and string

Operations are done with python operators and allows types that python allows, and return None if the operation can be done due to imcompatible types.

When operators are used, a jsonpath must be be fully defined otherwise if jsonpath-rw-ext can't known if expression is a string or a jsonpath field, it will choice string.

Example with data:

{
    'cow': 'foo',
    'fish': 'bar'
}

cow + fish returns cowfish
$.cow + $.fish returns foobar
$.cow + "_" + $.fish returns foo_bar
$.cow + "_" + fish returns foo_fish

About arithmetic and list

Arithmetic can be used against two list if they have the same size.

Example with data:

{'objects': [
    {'cow': 2, 'cat': 3},
    {'cow': 4, 'cat': 6}
]}

$.objects[*].cow + $.objects[*].cat returns [6, 9]