kernel busy when pylab is used in ipython notebook

Question

I'm using ipython notebook 1.1.0 (and python 2.7.3) on chromium. When I use pylab and apply

pylab.show()

the ipython notebook freezes with "kernel busy". I've seen that kernel busy is a common bug in ipynb.

After a while on terminal I got:

ATTENTION: default value of option force_s3tc_enable overridden by environment.

Any ideas on what to look for?

Answer 1

are you including "%matplotlib inline" in your code? I had this error, and adding it to my code solved the issue of a hanging kernel.

Check out the official documentation for a more thorough explanation .