Re: [Matplotlib-users] IDLE hangs despite -n

[Todd M. <jm...@st...>]

Hi Hans,

I just tried this out and found that setting "interactive" to "True" in
C:\python23\share\matplotlib\.matplotlibrc obviated the need to use the
show() command.  The plot then comes up as soon as you issue the plot()
command.  Multiple plotting-closing cycles worked fine in the same Idle
session.

Regards,
Todd

On Tue, 2005-01-11 at 14:29, Hans Fangohr wrote:
> Dear all,
> 
> I tried to make matplotlib work with IDLE on Windows. I have settled for 
> the Enthough Python Edition and the latest matplotlib (both executables 
> can be found in www.soton.ac.uk/~fangohr/download/python).
> 
> I have prepared the exercises on linux and am now trying to run them in
> windows. This is where I realised that matplotlib doesn't work well with
> IDLE.
> 
> More particularly, it is known that the default backend TkAgg doesn't work
> with IDLE (see here http://matplotlib.sourceforge.net/backends.html#TkAgg)
> but it appears to work with "IDLE -n" (as it says on that web page).
> 
> The problem I experience is this:
> 
> -start idle
> -execute these commands:
> 
>    import pylab
>    pylab.plot(range(10))
>    pylab.show()
> 
> This produces a figure window which seems to work fine.
> 
> At this point when closing the figure window, I can't get the IDLE
> prompt active again. (It seems that IDLE thinks the program and the figure
> process are still running, and is waiting for control to return.)
> 
> This, in itself, is maybe not suprising. However, the idle -n switch
> doesn't seem to solve the problem for me (see below).
> 
> The same problem is observed when I execute a program in the IDLE editor
> (by pressing F5).
> 
> Maybe this is the problem:
> 
> I have tried to tell IDLE to start with the "-n" by modifying the properties for the
> IDLE link in the start menu from
> 
> C:\Python23\pythonw.exe "C:\Python23\Lib\idlelib\idle.pyw"
> 
> to
> 
> C:\Python23\pythonw.exe "C:\Python23\Lib\idlelib\idle.pyw" "-n"
> 
> but this doesn't seem to solve the problem: I get exactly the same
> behaviour as described above. Am I doing the right thing?
> 
> Can anyone give me some advice?
> 
> Many thanks,
> 
> Hans
> 
> 
> P.S. Funnily enough, there are two Windows machines with a very similar 
> software setup, i.e. enthought python plus matplotlib, where the default 
> TkAgg interface seems to work happily togethe with IDLE. Unfortunately, 
> these are not the ones I am trying to get to work :-|
> 
> 
> 
> 
> 
> -------------------------------------------------
> Dr Hans Fangohr
> 
> Computational Engineering & Design Research Group
> School of Engineering Sciences
> University of Southampton
> Southampton, SO17 1BJ
> United Kingdom
> 
> Location: Building 25, Room 1027
> phone : +44 (0) 23 8059 8345
> fax   : +44 (0) 23 8059 7082
> email : fa...@so...
> -------------------------------------------------
> 
> 
> 
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