Using KDB-X Python in python subprocesses

This page outlines using KDB-X Python in a Python subprocess.

To use KDB-X Python in a python subprocess you should spawn the process using the kx.PyKXReimport function as follows:

import pykx as kx
import subprocess
with kx.PyKXReimport():
    subprocess.Popen(['python', 'file.py']) #_Run a python subprocess that loads a python script containing a import pykx

Failing to reimport the KDB-X Python package running in the parent process can cause the subprocess to crash with a segmentation fault. The PyKXReimport function and possible causes of segmentation faults is covered in more detail here.