[Yt-dev] debugging decorator

[Matthew Turk]

Hi guys,

I just added a new decorator in r1229.  This is the 'run_pdb'
decorator, which will drop you to an interactive pdb shell before
calling the function that it is applied to.  For instance, if I
applied it to, say, _is_fully_enclosed inside BaseDataTypes, whenever
that function is called I get a pdb prompt.  (
http://docs.python.org/library/pdb.html ) This enables FAR easier
debugging.  (You can do the same thing by inserting pdb.set_trace() at
any point in the code, but this way yt will handle the imports for
you.)

-Matt