[DiapDealer]

Creating self-deleting temp folders with python's contextmanager:

from contextlib import contextmanager

@contextmanager
def make_temp_directory():
    import tempfile
    import shutil
    temp_dir = tempfile.mkdtemp()
    yield temp_dir
    shutil.rmtree(temp_dir)

Then in your plugin, you can simply do something like:

with make_temp_directory() as temp_dir:
    do
    stuff
    with
    things
    in
    the
    temp_dir

It's not perfect, but barring any untrapped errors (or platform-specific permission problems), "temp_dir" will delete itself after completion of the with statement.