Sound alerts in Jupyter for code completion and exceptions

simoneva · August 7, 2017, 3:26pm

You may be interested to know you can easily create a jupyter extension that responds to start and end cell events. I set mine up to log the start time; elapsed time; and play a sound if execution time is more than 30 seconds.

github.com

simonm3/nbextensions/blob/master/cellevents.py

""" jupyter addin shows starttime, elapsedtime; sounds alert on cell finish
"""
import time
from IPython.core.magics.execution import _format_time
from IPython.display import display as d
from IPython.display import Audio
from IPython.core.display import HTML
import numpy as np
import logging as log

def alert():
    """ makes sound on client using javascript (works with remote server) """      
    framerate = 44100
    duration=.05
    freq=300
    t = np.linspace(0,duration,framerate*duration)
    data = np.sin(2*np.pi*freq*t)
    d(Audio(data,rate=framerate, autoplay=True))
    hide_audio()

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