[Tutor] Refresh library imported

[Steven D'Aprano]

On Tue, Aug 11, 2015 at 10:29:56AM +0200, jarod_v6--- via Tutor wrote:
> HI there!!
> I  try to develop some scripts. I use ipython for check if my script work.
> 
> When I change the script and try to import again that script I'm not 
> able to see the modification so I need every time close ipython and 
> run again and import the script. How can do the refresh of library 
> without close ipython? thanks so much!

In Python 2:


import mymodule
# make some changes
reload(mymodule)


But be careful that objects attached to the module are *not* updated to 
use the new module!

import mymodule
x = mymodule.MyClass()
reload(mymodule)
x.method()

x still uses the old version of the class and method, and will *not* use 
the new one. You have to throw it away and start again:

reload(mymodule)
x = mymodule.MyClass()
x.method()

Now you will see the new behaviour.


In Python 3, everything is the same except you have to do:

from imp import reload

first.


-- 
Steve