Simon Forman wrote:
On Thu, Oct 8, 2009 at 1:42 AM, Terry Reedy <tjre...@udel.edu> wrote:
Hans Mulder wrote:
Errrhm, no. He is not deleting the PyQt4 module from sys.modules;
he's only deleting the name QtGui from his own namespace. Next
time Python comes across
from PyQt4 import QtGui
, it finds that the module PyQt4 already exists in sys.modules, so
Python does not have to load the module again. All it has to do is
bind name QtGui in the importing module to the class with the same
name in the PyQt4 module. That does not take many cycles.
I recently discovered that when IDLE restarts (as when one runs a file from
an edit window), it clears the global namespace but does not clear
sys.modules. Hence re-running a script that does time-consuming imports is
much faster, as only the global name binding is done after the first run.
Is that with or without '-n'?
The Windows start menu IDLE entry, which I gather is without -n, though
the property sheet does not actually give the command-line equivalent.
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