On Thursday, April 18, 2013 8:53:01 PM UTC+1, Christian Münker wrote:
> Using WinPython 2.7.3.3 and Spyder 2.2.0rc under Windows7 32bit, Spyder
> runs incredibly stable on my system and I'm really happy with the software.
>
> One little hiccup I get from time to time is that I can't start a new
> IPython console from the menu ('Interpreters -> Open an IPython console').
> A new IPython Tab appears in the Tab <Console> but it is greyed out (see
> screenshot), hasn't got a Kernel ID and the window only contains the message
>
> Assertion failed: Permission denied (..\..\..\src\err.cpp:247)
>
> I haven't been able yet to track down the conditions under which this
> error occurs, it might be related to switching the IPython graphic mode
> using
>
> Tools -> Preferences -> IPython -> Graphics -> Backend -> e.g. from Inline
> to Automatic
>
> Switching to e.g. Qt usually allows to start a new IPython console again,
> so, not really annoying.
>
> Cheers,
>
> Christian
>
>
I've seen this with 64bit WinPython as well. I'm not sure it's always the
same file err.cpp but it's always a permission denied error. It is however
sporadic and the way I found to work around it is to simply try opening
multiple IPython consoles until one succeeds.
-Dave
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