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.
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