Using PyLab's Specgram In A Headless Environment

Question

Anyone know how to get it working? Unfortunately it seems by default specgram's code wants to generate an image, which I have no use for, only the data behind the image. The error I get is:

_tkinter.TclError: no display name and no $DISPLAY environment variable

score 1 · Accepted Answer · answered Jun 14 '13 at 07:16

1

You may set a matplotlib backend, which doesn't need a display attached:

import matplotlib
matplotlib.use('pdf')

These lines should go before importing pylab.

answered Jun 14 '13 at 07:16

David Zwicker

23,581
6
62
77

Great, I'll check it out tomorrow and see if it works. – Newmu Jun 15 '13 at 03:37

Using PyLab's Specgram In A Headless Environment

1 Answers1