What is your Windows version? I recall reading somewhere that this error appears only on WinXP.

Cheers,
Carlos

El 06/10/13 00:15, B Ware escribió:
I'm having this error as well. I first encountered it in ipython notebook, but it seems to show in spyder as well. I'm running the current (32 bit) anaconda installation of python, ipython, and spyder. The error message is "Assertion failed: Permission denied (..\..\..\src\err.cpp:247)" and it causes (in ipython notebook) the kernel to restart and shutdown continuously a number of times before sometimes eventually working if I wait long enough.

For me, the error still occurs even with Windows Firewall turned off.

Anyone learn anything else about this error? I can't even seem to find the source file, or any more details about how it is triggered, except for this discussion.

Thanks for your help

On Thursday, April 18, 2013 12:53:01 PM UTC-7, 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

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