[IPython-User] ipython and libstdc++

Robert McGibbon rmcgibbo@gmail....
Fri Nov 30 06:42:41 CST 2012

Is the difference between stuff being in /software but the dynamic loader seeming to
look (from the error message) in /usr/lib relevant?

Perhaps you could rebuild ftfont.so an RPATH?

If it were me, might just make a little shell script that does the line you showed, and alias
it to ipython notebook...


On Nov 30, 2012, at 4:32 AM, Rita wrote:

> Similar to this post, http://mail.scipy.org/pipermail/ipython-user/2012-March/009752.html
> I have been having problems with invoking pylab in a notebook environment. 
> When I try to import pylab i a notebook environment I get this
> importError: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.11' not
> ound (required by ..python2.7/site-packages/matplotlib/ft2font.so 
> Admittedly, I have multiple GCCs on my system and I am certain the GCC i compiled python with should be used.  When I do an ldd against the ft2font.so it resolved to the correct libstdc++ (my gcc version not OS). When I run something like this, 
> LD_PRELOAD=/software/gcc-4.6.3/lib64/libstdc++.so.6 /software/python/bin/ipython notebook --profile=foo --pylab inline 
> everything works. 
> Is there a better way to do this?  
> -- 
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