Re: Problems on Installing New Fipy

On Jul 19, 2008, at 11:44 AM, Zhiwen Liang wrote:

> When I "import pylab", I got:
>
> >>> import pylab
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "/sw/lib/python2.3/site-packages/pylab.py", line 1, in ?
>     from matplotlib.pylab import *
>   File "/sw/lib/python2.3/site-packages/matplotlib/pylab.py", line  
> 196, in ?
>     import cm
>   File "/sw/lib/python2.3/site-packages/matplotlib/cm.py", line 5,  
> in ?
>     import colors
>   File "/sw/lib/python2.3/site-packages/matplotlib/colors.py", line  
> 33, in ?
>     from numerix import array, arange, take, put, Float, Int, where, \
>   File "/sw/lib/python2.3/site-packages/matplotlib/numerix/ 
> __init__.py", line 68, in ?
>     from _sp_imports import nx, infinity
>   File "/sw/lib/python2.3/site-packages/matplotlib/numerix/ 
> _sp_imports.py", line 1, in ?
>     from numpy import Int8, UInt8, \
> ImportError: cannot import name Int8

Interesting. I need to figure out why viewers.make() doesn't report  
this error message to you, instead of the one about pylab.io() (mind  
you, I'd have had no idea where this error message was coming from, so  
we'll need to figure out an easier way to report backtraces for  
failing viewers).

In the meantime, please do provide the diagnostics that Daniel asked  
for.

> So I could not do "pylab.__file__". I confirmed there is only this  
> pylab.py in my computer because if I uninstall matplotlib, there  
> will be no module called pylab.

Understood. I just wanted to be certain that you were getting the  
import you thought you were; I've had subtle things happen with .pth  
files and such.

> I agreed that python 2.3 is too old. Matplotlib now only releases  
> new versions for python 2.4 and higher.

While I'm glad you agree, I'm a little puzzled. I thought the whole  
point of fink was that it kept different packages consistent with one  
another. If you have python 2.3, then it should be loading an  
appropriate version of matplotlib or it should be insisting that you  
install a newer version of python.