[Tutor] ensuring a __del__ method happens

[Sean 'Shaleh' Perry]

>> >> SO, I have a class Foo which maps to a directory.  When you create
>> >> Foo, it makes a directory of the form /tmp/foo-pid.  I would like for
> 
> Just a note: IIRC, /tmp/foo-pid names are vulnerable to race conditions.
> Better use a more random name, I think.
> 

This is not an issue for this program.  The item created is a directory and the
way this program is used problems will not occur.  But thanks for the sanity
check.

I am rewriting the existing code base from perl to python.  The perl code is
all functions, the new python code is mostly OO.  The perl code has worked for
4 years but is showing its age and is making new features difficult to add.