Skip to main content

Get values from JSON objects using a path expression

Project description

https://img.shields.io/pypi/l/json-get.svg https://img.shields.io/github/release/srittau/python-json-get/all.svg https://img.shields.io/pypi/v/json-get.svg https://travis-ci.org/srittau/python-json-get.svg?branch=master

Get values from JSON objects usings a path expression. Optional type checking is possible:

>>> from jsonget import json_get, json_get_default, JList
>>> j = {
...     "foo": {"num": 3.4, "s": "Text"},
...     "arr": [10, 20, 30],
... }
>>> json_get(j, "/foo/num")
3.4
>>> json_get(j, "/arr[1]")
20
>>> json_get(j, "/foo/unknown")
Traceback (most recent call last):
    ...
ValueError: JSON path '/foo/unknown' not found

Values are optionally checked against one of the following types: str, int, float, bool, list, and dict. Checking for null values is not supported:

>>> json_get(j, "/foo/num", str)
Traceback (most recent call last):
    ...
TypeError: wrong JSON type str != float

float will match any number, int will only match numbers without a fractional part:

>>> json_get(j, "/foo/num", float)
3.4
>>> json_get(j, "/foo/num", int)
Traceback (most recent call last):
    ...
TypeError: wrong JSON type int != float

Additionally, the type of list values can be checked:

>>> json_get(j, "/arr", JList(int))
[10, 20, 30]

json_get_default() can be used to return a default value if a given path does not exist:

>>> json_get_default(j, "/bar", "default value")
'default value'

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distributions

No source distribution files available for this release.See tutorial on generating distribution archives.

Built Distribution

json_get-1.1.1-py3-none-any.whl (6.5 kB view hashes)

Uploaded Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page