On Thu, 2 Mar 2006, John Salerno wrote:
I understand that after you import something once, you can reload it to pick
up new changes. But does reload work with from statements? I tried this:
from X import *
and then did my testing. I changed X and tried to reload it, but that didn't
seem to work. I figure the reason is because the module itself doesn't exist
as an object, only its names do. But I couldn't figure out how to pick up my
new changes at this point. I think eventually I did
import X
and that sort of started me back from the beginning, with my changes. But is
there a way to continue to use a from statement instead, and then reload your
changes?
"reload" is an ordinary procedure that takes a module as an argument. When
you use a "from X import *" statement, "X" is not imported, so you have no
module object to pass to "reload". In addition, even if you do import "X"
and reload it, you won't update your bindings; you'll still have to do
"from X import *" again to update any names imported from X before.
So, to make a long story short, you have to do something like:
import X
reload(X)
del X # to keep your namespace clean
from X import *
In general, "from X import *" should be avoided anyway, for reasons that
have been discussed many times in the past. The annoyance with reloading
is just one more reason. Better to just use "import X" in the first place.
--
.:[ dave benjamin -( ramen/sp00 )-
http://spoomusic.com/ ]:.
"one man's constant is another man's variable" - alan perlis