Mathes, Gary C wrote:
> Installation question:
> 
>  
> 
> The *import pylab* command reports an error.  See bold below for 
> details.  What installation step(s) am I missing?

it looks like you've got GTK set as your default back-end, but are not 
running and X-server on this box.

If you want to use MPL without a GUI, you need to set your default 
backend to "AGG", but you probably shouldn't use pylab for that anyway, 
but rather use the OO API -- some googling will tell you about that.

-Chris



>  
> 
> Thanks!
> 
>  
> 
> *# uname -a*
> 
> Linux SESB01-RE01 2.6.18-92.el5 #1 SMP Tue Jun 10 18:51:06 EDT 2008 
> x86_64 x86_64 x86_64 GNU/Linux
> 
>  
> 
> #!/usr/bin/python
> 
>  
> 
> # File: *mp_versions.py*
> 
>  
> 
> import matplotlib
> 
> import numpy
> 
> import matplotlib as mpl
> 
>  
> 
> print "matplotlib version = " + matplotlib.__version__
> 
> print "matplotlib file = " + matplotlib.__file__
> 
> print "numpy version = " + numpy.__version__
> 
> print "mpl.get_configdir = " + mpl.get_configdir()
> 
>  
> 
> *import pylab*
> 
>  
> 
> *# mp_versions.py*
> 
> matplotlib version = 0.99.1.1
> 
> matplotlib file = /usr/lib64/python2.4/site-packages/matplotlib/__init__.pyc
> 
> numpy version = 1.2.1
> 
> mpl.get_configdir = /root/.matplotlib
> 
> *Traceback (most recent call last):*
> 
> *  File "./mp_versions.py", line 12, in ?*
> 
> *    import pylab*
> 
> *  File "/usr/lib64/python2.4/site-packages/pylab.py", line 1, in ?*
> 
> *    from matplotlib.pylab import **
> 
> *  File "/usr/lib64/python2.4/site-packages/matplotlib/pylab.py", line 
> 247, in ?*
> 
> *    from matplotlib.pyplot import **
> 
> *  File "/usr/lib64/python2.4/site-packages/matplotlib/pyplot.py", line 
> 78, in ?*
> 
> *    new_figure_manager, draw_if_interactive, show = pylab_setup()*
> 
> *  File 
> "/usr/lib64/python2.4/site-packages/matplotlib/backends/__init__.py", 
> line 25, in pylab_setup*
> 
> *    globals(),locals(),[backend_name])*
> 
> *  File 
> "/usr/lib64/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py", 
> line 10, in ?*
> 
> *    from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, 
> FigureCanvasGTK,\*
> 
> *  File 
> "/usr/lib64/python2.4/site-packages/matplotlib/backends/backend_gtk.py", 
> line 8, in ?*
> 
> *    import gtk; gdk = gtk.gdk*
> 
> *  File "/usr/lib64/python2.4/site-packages/gtk-2.0/gtk/__init__.py", 
> line 76, in ?*
> 
> *    _init()*
> 
> *  File "/usr/lib64/python2.4/site-packages/gtk-2.0/gtk/__init__.py", 
> line 64, in _init*
> 
> *    _gtk.init_check()*
> 
> *RuntimeError: could not open display*
> 
>  
> 
> # *ipython*
> 
> Python 2.4.3 (#1, May 24 2008, 13:57:05)
> 
> Type "copyright", "credits" or "license" for more information.
> 
>  
> 
> IPython 0.8.4 -- An enhanced Interactive Python.
> 
> ?         -> Introduction and overview of IPython's features.
> 
> %quickref -> Quick reference.
> 
> help      -> Python's own help system.
> 
> object?   -> Details about 'object'. ?object also works, ?? prints more.
> 
>  
> 
> *Installation steps:*
> 
> # rpm -ivh refblas3-3.0-11.2.x86_64.rpm lapack3-3.0-19.2.x86_64.rpm
> 
> # rpm –ivh python-dateutil-1.2-1.el5.noarch.rpm pytz-2006p-1.el5.noarch.rpm
> 
> # rpm -ivh python-setuptools-0.6c5-2.el5.noarch.rpm
> 
> # rpm -ivh python-nose-0.10.4-1.el5.noarch.rpm
> 
> # rpm -ivh atlas-3.8.3-1.el5.x86_64.rpm
> 
> # rpm -ivh numpy-1.2.1-2.el5.x86_64.rpm
> 
> # rpm -ivh python-matplotlib-0.99.1.2-1.el5.x86_64.rpm
> 
> # rpm -ivh ipython-0.8.4-1.el5.noarch.rpm
> 
>  
> 
> *Location of RPMs:*
> 
> http://download.opensuse.org/repositories/home:/ashigabou/CentOS_5/x86_64/
> 
> http://www.rpmfind.net/linux/rpm2html/search.php?query=python-dateutil
> 
> http://www.rpmfind.net/linux/RPM/epel/5/ppc/pytz-2006p-1.el5.noarch.html
> 
> http://fr2.rpmfind.net/linux/RPM/epel/testing/5/ppc/python-nose-0.10.4-1.el5.noarch.html
> 
> http://rpm.pbone.net/index.php3/stat/4/idpl/12391980/com/atlas-3.8.3-1.el5.x86_64.rpm.html
> 
> http://www.rpmfind.net/linux/rpm2html/search.php?query=numpy
> 
> http://www.rpmfind.net/linux/rpm2html/search.php?query=python-matplotlib
> 
> http://rpm.pbone.net/index.php3/stat/4/idpl/9548551/com/ipython-0.8.4-1.el5.noarch.rpm.html
> 
>  
> 
>  
> 
> **/Gary/**
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
> ------------------------------------------------------------------------------
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> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> 
> 
> ------------------------------------------------------------------------
> 
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Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
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