This is a tiny wrapper around the standard json library, allowing to read a json file incrementally.

This can be useful for

• parsing json streams without waiting for the end of the transmission,
• parsing very big json objects without wasting RAM for the json representation itself.

It is an alternative to ijson (written when I did not know ijson existed).

No extensive tests were made (if you make them, let me know), but here are the results (in seconds) obtained in opening a local file with 384650 objects, totalling 174 MB:

Those results were obtained with the script “tests/json_load_test.py”.

Clearly those numbers are affected by the speed of the CPU and of the medium/stream. In general the faster the CPU (compared to the storage medium/stream), the fastest will be the standard json compared to incremental ones (including jsaone).

Because it sounds similar to “json”… but the Saône is a (large) stream.

• simplejson (Python 2.5 only)
• for speedup: cython (at build time)

The simplest way to try jsaone is to extract it/clone the git repo, then move in the “jsaone” folder and give the command

python setup.py build_ext --inplace

and then import the module jsaone from your code.

Released under the GPL 3.