Re: [Matplotlib-users] matplotlib with Qt4 backend

[Andrew S. <str...@as...>]

Celil Rufat wrote:
> I just installed matplotlib on Snow Leopard 10.6 with the Qt4 backend 
> (via macports). However, when I try one of the Qt4 examles:
>
> python 
> /opt/local/share/py26-matplotlib/examples/user_interfaces/embedding_in_qt4.py
>
>
> IOError: [Errno 4] Interrupted system call
>
> Any ideas on what could be causing this?
Out of curiosity, does anyone know where the signal interrupting the 
system call is originating? Is this a standard communication mechanism 
within Qt4? (I have never used Qt4.) I'm interested in knowing about OSS 
that use signals as a means of across-thread or across-process 
communication.