[IPython-dev] MultipleInstanceError

Thomas Kluyver takowl@gmail....
Sun Jun 30 10:31:54 CDT 2013

Various parts of the IPython machinery assume that there's only one
instance in a given process, and would break with multiple IPython shells
in a single process. We're slowly moving away from that, but it's not high
priority for us.


On 30 June 2013 05:52, Aaron Meurer <asmeurer@gmail.com> wrote:

> In IPython dev, if you try to start an IPython instance from within an
> IPython instance, it raises MultipleInstanceError. What is the purpose
> of this? It breaks a use-case of mine, which is to start PuDB from
> within IPython, then to open the IPython interpreter from within PuDB
> while debugging?  Is the new way to do things to somehow reattach to
> the same IPython instance?
> I've CCd the PuDB list.
> Aaron Meurer
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