jq is a lightweight and flexible JSON processor.
This project contains Python bindings for
jq <http://stedolan.github.io/jq/>
_.
During installation, jq 1.4 is downloaded over HTTPS from GitHub and built. Therefore, installation requires any programs required to build jq. This includes:
The normal C compiler toolchain, such as gcc and make.
Installable on Debian, Ubuntu and relatives by installing the package build-essential
.
Autoconf
Flex
Bison
libtool
Python headers.
Installable on Debian, Ubuntu and relatives by installing the package python-dev
.
If on Debian, Ubuntu or relatives, running the following packages should be sufficient:
.. code-block:: sh
apt-get install build-essential autoconf flex bison libtool python-dev
A program can be compiled by passing it to jq.jq
.
To apply the program to an input, call the transform
method.
jq.py expects the value to be valid JSON,
such as values returned from json.load
.
.. code-block:: python
from jq import jq
jq(".").transform("42") == "42"
jq(".").transform({"a": 1}) == {"a": 1}
If the value is unparsed JSON text, pass it in using the text
argument:
.. code-block:: python
jq(".").transform(text="42") == 42
The text_output
argument can be used to serialise the output into
JSON text:
.. code-block:: python
jq(".").transform("42", text_output=True) == '"42"'
If there are multiple output elements, each element is represented by a
separate line, irrespective of the value of multiple_output
:
.. code-block:: python
jq(".[]").transform("[1, 2, 3]", text_output=True) == "1\n2\n3"
If multiple_output
is False
(the default), then the first output
is used:
.. code-block:: python
jq(".[]+1").transform([1, 2, 3]) == 2
If multiple_output
is True
, all output elements are returned in
an array:
.. code-block:: python
jq(".[]+1").transform([1, 2, 3], multiple_output=True) == [2, 3, 4]