Py 3.3.2, MacBookPro, segmentation fault, GCC issue?

Mark Lawrence breamoreboy at yahoo.co.uk
Wed Nov 6 19:37:59 CET 2013


On 06/11/2013 18:15, John Ladasky wrote:
> I am trying to help a student of mine install Python 3 on his MacBook Pro.  The installation succeeds.  However, upon opening the Python interpreter, he can only execute one Python command successfully.  On the second command, the interpreter crashes, giving the error "Segmentation fault: 11".
>
> I have installed Python 3 on Linux and on Windows before, but I have no prior experience with Macs.  I know that OSX is Unix-like, but I'm sure that there are significant differences between the Linux that I normally use and OSX.
>
> My student's computer is configured as follows: MacBook Pro, 2.5 GHz Intel Core i5, 4 GB RAM 1600 MHz DDR3, OS X 10.9.  We installed the Python 3.3.2 Mac OS X 64-bit/32-bit x86-64/i386 Installer (for Mac OS X 10.6 and later) from http://python.org/download.
>
> The Python interpreter reported the following when it was opened:
>
> Python 3.3.2 : d047928ae3f6, May 13 2013, 13:52:24
> GCC 4.2.1 (Apple Inc. build 5666) (dot3) on darwin
>
> I do not know exactly how the Mac installer works.  It seemed to operate quickly.  It reported very little about what work it was actually doing.  Does it install pre-compiled binaries, or does it actually build Python locally from source code?  GCC 4.2.1 strikes me as OLD.  According to http://gcc.gnu.org/releases.html, it was released in 2007!  I would guess that the segfault is occurring because the Python interpreter was compiled using an outdated GCC.
>
> First question: did this outdated compiler execute its work at python.org (seems unlikely), or on my student's computer (seems more likely, though still rather absurd)?
>
> Follow-up questions: if I need a more current GCC for my student's Mac, how do I obtain it?  And are there any backwards-compatibility issues I might need to worry about if I do upgrade?  From my Linux experience, upgrading GCC has never caused problems.  But I want to be cautious, since this isn't my computer I'll be playing with, but someone else's.
>
> Thanks for any advice you may have.
>

http://bugs.python.org/issue18458

-- 
Python is the second best programming language in the world.
But the best has yet to be invented.  Christian Tismer

Mark Lawrence




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