Re: [Matplotlib-users] Re:Newbie Question...

[Barry D. <bl...@ad...>]

John,
I tested with DrPython 2.4.2, PyPe 1.9, PythonWin,
Idle, SciTE 1.6, and, my usual dev environment,
UltraEdit 10.20b.  

Only SciTE hasn't worked so far; it exits with the
error:

Fatal Python error: PyEval_RestoreThread: NULL tstate

Even from a Win shell (DOS) the disappearing window
problem occurred until I inserted the line

matplotlib.interactive(False)

Idle seems to fail on the second run with error:

Unhandled exception at 0x1e0078d4 in pythonw.exe:
0xC0000005: Access violation reading location
0x00000004.

In the MS debugger I see the disassembled code:

1E0078CF  nop              
1E0078D0  mov         edx,dword ptr [esp+4] 
1E0078D4  mov         ecx,dword ptr [edx+4] 

where it breaks on the last line.

Thanks for the pointer on the matplotlibrc file.  I'll
switch to using that from now on (more *nix-like
anyway).

Barry

--- John Hunter wrote:
> >>>>> "Ryugan" == Ryugan Mizuta
> <ryu...@sb...> writes:
> 
>     Ryugan> Thanks for all who gave me a
reply.... 
> Somehow the
>     Ryugan> following script worked...:
> 
>     import matplotlib
>     matplotlib.interactive(False)
>     matplotlib.use("WX")
> 
>     from matplotlib.matlab import *
>     plot([1,2,3,4])
>     show()
> 
> 
> I just want to point out that in my opinion, the
> easiest way to set
> the default backend is to use your matplotlibrc
file
> -
>
http://matplotlib.sourceforge.net/faq.html#MATPLOTLIBRC.
>  For windows,
> this is found at
> C:\Python23\share\matplotlib\.matplotlibrc.
> 
> You can achieve the same effect by setting
> 
>     backend      : WX       # the default backend
>     interactive  : False    # see
>
http://matplotlib.sourceforge.net/interactive.html
> 
> which will not be so invasive to your script (ie,
> you can change the
> default behavior of your scripts w/o changing the
> scripts
> themselves).  Using
> 
>     import matplotlib
>     matplotlib.interactive(False)
>     matplotlib.use("WX")
> 
> should be something you reserve to depart from
the
> desired default
> behavior.
> 
> Glad it's working for you!  I have two more
> questions I am curious
> about, for both you and Barry
> 
>   * Does WXAgg also work?
> 
>   * In which IDEs do you find this combination
> works?
> 
> Following your question yesterday I added the FAQ
> entry
>
http://matplotlib.sourceforge.net/faq.html#FREEZE,
> and I'd like to
> update it to make it as complete as possible.
> 
> JDH
> 
> 
>
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