problems converting glyph to bitmap

Your error occurs much more recently than the glyph one that occupies
your subject

Python 2.3.4 (#1, Feb 2 2005, 12:11:53)
[GCC 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

from pylab import *
from data_helper import get_daily_data

Traceback (most recent call last):
  File "<stdin>", line 1, in ?
ImportError: No module named data_helper

It looks like you have not downloaded the data_helper module from the
web site, that this example uses. You'll also need to download the
data files as well ...

grid(True)

show()

Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/matplotlib/backends/backend_gtk.py", line 318, in expose_event

You should not use show from interactive mode. Try reading

  http://matplotlib.sourceforge.net/interactive.html

  http://matplotlib.sourceforge.net/tutorial.html

and

  http://matplotlib.sourceforge.net/faq.html#SHOW

JDH