On 2010-01-20 08:40 AM, Brian Blais wrote:
Hello,
I am noticing a hard crash of the ipython interpreter, with the pylab
option, with the turtle module. I am on Win XP, Enthought Edition 6.0.0
which uses Python 2.6. I can't reproduce it without the pylab option,
nor on the Mac (with an earlier Enthought Edition). The crash happens
only when I try to move the turtle window, after it has drawn. The
following commands are enough to give the resulting error.
In [1]: from turtle import *
In [2]: pendown()
In [3]: forward(10)
In [4]: Fatal Python error: PyEval_RestoreThread: NULL tstate
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
Any ideas? Of course, I'll use it without the pylab option, but that
means that there are two icons I need instead of one. Minor
inconvenience for me, but a bit more of a pain for my students.
The IPython list is probably a better place for this question. Is suspect that
the problem is the mixing of GUIs. turtle uses Tk, but I suspect that your
configured matplotlib backend is WxAgg. "ipython -pylab" will bring up a wx
application as the main thread for execution of the code you type. When you try
to bring in another GUI event loop, something goes awry.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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