[IPython-User] module reloading in 0.11

MinRK benjaminrk@gmail....
Wed Aug 3 23:35:27 CDT 2011


On Wed, Aug 3, 2011 at 21:19, Aaron Meurer <asmeurer@gmail.com> wrote:
> Will reloading the kernel use the same profile?

Yes, it should be exactly as it was on first launch.
>
> I want to develop on SymPy, and do ipython qtconsole profile=sympy,
> and restart the kernel (but not the console) whenever I edit a sympy
> file.
>
> Also, how exactly do you restart the kernel?

ctrl-. (period)

>
> Aaron Meurer
>
> On Wed, Aug 3, 2011 at 3:55 AM, Robert Cimrman <cimrman3@ntc.zcu.cz> wrote:
>> Hi Thomas,
>>
>> On 08/03/11 11:31, Thomas Kluyver wrote:
>>> Hi Robert,
>>>
>>> On 3 August 2011 09:03, Robert Cimrman<cimrman3@ntc.zcu.cz>  wrote:
>>>
>>>> In 0.10.2, when one edits a Python script, it is very convenient to try it
>>>> in
>>>> ipython shell using the %run command. But, if a module imported in the
>>>> script
>>>> changes, it is not reloaded, just as the docs say "(except for sharing
>>>> global
>>>> objects such as previously imported modules)".
>>>>
>>>> Could this "problem" be solved somehow by the new two-process architecture
>>>> of
>>>> 0.11? I have just tried the Git version, and it behaves just like 0.10.2 in
>>>> this respect.
>>>>
>>>
>>> I don't think the two-process architecture has any effect on it at all - all
>>> your code is loaded and run in the kernel. You can restart the kernel from
>>> the frontend, but then you lose everything in your namespace (like closing
>>> IPython and starting it again).
>>
>> Yes, I was thinking of restarting the kernel would wipe-out everything. But for
>> behaviour like 'clear all' in matlab it should be ok, right?
>>
>>> Have a look at the code in IPython.lib.deepreload - I think it should be
>>> possible to tweak the %run magic so that it replaces the
>>> __builtin__.__import__ function before running code, and puts it back
>>> afterwards.
>>
>> I will, thanks for the tip!
>>
>> r.
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