[IPython-User] [IPython-dev] Last call for 0.13.1

Aaron Meurer asmeurer@gmail....
Tue Oct 16 13:35:18 CDT 2012

On Tue, Oct 16, 2012 at 12:14 PM, Matthias BUSSONNIER
<bussonniermatthias@gmail.com> wrote:
> Le 16 oct. 2012 à 20:03, David Warde-Farley a écrit :
>> On Tue, Oct 16, 2012 at 1:45 PM, Matthias BUSSONNIER
>> <bussonniermatthias@gmail.com> wrote:
>>> Le 16 oct. 2012 à 19:24, David Warde-Farley a écrit :
>>>> On Thu, Oct 11, 2012 at 7:22 PM, Aaron Meurer <asmeurer@gmail.com> wrote:
>>>>> You may want to start a deprecation cycle for the SymPy printing
>>>>> extension, which has been moved to SymPy itself as of 0.7.2.  I would
>>>>> just have the following logic:
>>>>> if SymPy version is 0.7.2 or greater: use the ipython version (or
>>>>> should it use the sympy version?), but emit a deprecation warning
>>>>> telling the user to just load sympy.interactive.ipythonprinting
>>>>> if SymPy version is less than 0.7.2: don't do any warnings
>>>>> And then, when it's been long enough that probably most people are
>>>>> using SymPy 0.7.2 and IPython 0.13.1 or greater, remove it entirely.
>>>> Hmm. I just fired up one of my SymPy-centric notebooks that I haven't
>>>> touched in a while with IPython master, SymPy still 0.7.1 from EPD
>>>> 7.1-2, and the pretty printing is mysteriously not working with
>>>> %load_ext sympy. Any idea why?
>>> %load_ext sympyprinting ?
>>> ( note that it is currently being moved from IPython to the sympy module)
>> Thanks Matthias.
>> Was it always named "sympyprinting"? I had %load_ext sympy in my
>> notebook and it used to work, strangely.
> I've always known the extension as sympyprinting.
>> Why does %load_ext sympy still work then? Does it just silently pass
>> with any module name? (I noticed just now that "%load_ext pickle"
>> works…).
> Hum; I have no idea why `%load_ext module` works, or if it should print a warning when there is no extension available with a module.
> Let's say it's a feature, so that for modules that have extension bundled in it you don't have to remember the name of the extension.

Oh, well I guess this means that you don't have to use "import sympy"
as I said in my previous response.  Just "%load_ext
sympy.interactive.ipythonprinting" will work.

Aaron Meurer

> --
> Matthias
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