Python extension that interacts with the J language
Project description
jruntime is a modern Python extension that interacts with the J language. It provides deep integration between Python and J in the following ways:
Takes over J engine I/O with Python I/O
Maps between J arrays and NumPy ndarrays, J boxes and Python tuples
Binds J nouns to lexical scopes using Python with statements
Handles J errors using Python exceptions
Emits the complete API document in help(jruntime)
Getting Started
Install jruntime and NumPy from PyPI:
pip install jruntime numpyNow you can run J code and read data in NumPy arrays:
>>> import jruntime
>>> j = jruntime.Session()
>>> j.runsource('v =: 3 4 $ i.12')
>>> j['v']
array([[ 0, 1, 2, 3],
[ 4, 5, 6, 7],
[ 8, 9, 10, 11]], dtype=int64)Or put Python data in J and run code that uses it:
>>> with j.let(title='Price', v=[.99, 1.48, 0.26]):
... j.runsource('title;+/ v')
+-----+----+
|Price|2.73|
+-----+----+Release history Release notifications | RSS feed
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