[Pythonmac-SIG] using IDLE and changing variables

[Christopher Smith]

Hi,

One thing that has been discussed recently on Tutor is the fact that 
when you make changes to a module that you are importing, the changes
won't be recognized unless you force a reload e.g., reload(mylibs).
So the reload() takes care of that.  My question concerns now the
change of variables within a definition/program.

Let's say at one point you had a variable x defined and you used it
in several places.  Then you change the variable from x to y but forget
to change it everywhere.  IDLE (at least from what I've seen) does not
warn about the uninitialized variable.  Is this just 
tough-luck-you-should-have-used-find-and-replace or is there some way
to make sure this doesn't happen (other than quitting and restarting)?

I guess what I'm looking for is something like BASIC's "new" command that
flushes out everything of the session and begins fresh.

/c