[Python-Dev] dict.discard

[Fred L. Drake, Jr.]

On Thursday 21 September 2006 09:42, Gustavo Niemeyer wrote:
 > After trying to use it a few times with no success :-), I'd like
 >
 > to include a new method, dict.discard, mirroring set.discard:
 >   >>> print set.discard.__doc__
 >
 >   Remove an element from a set if it is a member.
 >
 >   If the element is not a member, do nothing.

Would the argument be the key, or the pair?  I'd guess the key.

If so, there's the 2-arg flavor of dict.pop():

  >>> d = {}
  >>> d.pop("key", None)

It's not terribly obvious, but does the job without enlarging the dict API.


  -Fred

-- 
Fred L. Drake, Jr.   <fdrake at acm.org>