Two more last minute changes from PEPs

I'm adding two more changes I've gleaned from Python PEPs.  I hope I'm done
adding things.  The final list is:
http://prothon.org/wiki?pagename=OnePtZeroIndex

The first is a small change but very important.  It is the use of a main_()
function in modules like C language does.  This replaces the old convention
of testing to see if the module has been loaded as main.  This is not only
cleaner, but it allows a script to load a module and run it.
http://prothon.org/wiki?pagename=MainFunction

This proposal simply states that a generator will guarantee that a yield in
a try/finally block will always work and call the finally block no matter
what.
http://prothon.org/wiki?pagename=YieldFinallyReliability

P.S.  Sorry about the partial posting before.  Sometimes when I'm typing
away furiously, outlook express posts my message.  Obviously I'm bumping a
key combination to send, but I don't know what it is.