[Matplotlib-users] exporting PYTHONPATH causes matplotlib not to load

[Hani N. <na...@gm...>]

Dear all,
I'm running matplotlib 0.98.5.2 on a machine with Ubuntu Intrepid 8.10. It's
worked well for me so far, but I encounter problems running matplotlib when
trying to update the PYTHONPATH in the .bashrc file. Adding just the line
"export PYTHONPATH=$PYTHONPATH", for example, gives the following:

$ ipython -pylab
Traceback (most recent call last):
  File "/usr/bin/ipython", line 27, in <module>
    IPython.Shell.start().mainloop()
  File "/var/lib/python-support/python2.5/IPython/Shell.py", line 1219, in
start
    shell = _select_shell(sys.argv)
  File "/var/lib/python-support/python2.5/IPython/Shell.py", line 1188, in
_select_shell
    backend = matplotlib.rcParams['backend']
AttributeError: 'module' object has no attribute 'rcParams'

On the other hand,

$ ipython

permits ipython to load seemingly normally, but in that case

In [1]: import matplotlib.pyplot as plt
ImportError: No module named pyplot

Any ideas on what might be wrong? I'd be grateful for any advice.

Thanks,
Hani Nakhoul