Pylab ImportError after installing matplotlib from svn

    I'm running a Ubuntu 9.04 32bit on my laptop, and I believe that I
have successfully built and installed matplotlib 0.98.6 from svn.
The problem: when I try to import functions from pylab using the
Python teminal I get the following error:



from pylab import *

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.6/dist-packages/matplotlib-0.98.6svn-py2.6-linux-i686.egg/",
line 1, in <module>
    from matplotlib.pylab import *
ImportError: No module named pylab

Thing is, I do NOT get this error from 'ipython' when I run "ipython
-pylab", and a version check on matplotlib from ipython shows that it
had been successfully upgraded to 0.98.6svn

Any ideas why do I get the import error?