Python XML processing with lxml

Deliver the death poem, then commit seppuku. See also Section 15.6, “rnck: message()”.

# - - -   f a t a l

def fatal(*L):
    '''Write an error message and terminate.

      [ L is a list of strings ->
          sys.stderr  +:=  concatenation of elements of L
          stop execution ]
    '''
    message(*L)
    raise SystemExit