[IPython-User] module reloading in 0.11

Aaron Meurer asmeurer@gmail....
Wed Aug 3 23:19:04 CDT 2011

Will reloading the kernel use the same profile?

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

Also, how exactly do you restart the kernel?

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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