[Python-Dev] PySet_Next (Was: PySet API)

Barry Warsaw barry at python.org
Mon Mar 27 16:11:04 CEST 2006


On Sun, 2006-03-26 at 19:59 +0200, "Martin v. Löwis" wrote:

> If it is similar to PyDict_Next, it will have PyObject** /input/
> variables, which are really meant as PyObject* /output/ variables.

Yep, that's exactly what my posted patch does.

> For the caller, a clear usage strategy follows from this: either discard
> the references before making a potentially-mutating call, or Py_INCREF
> the set element before making that mutating call.

Yep.  Nice and simple.  And if you're not making a potentially-mutating
call, you don't have to worry about even that.  These /are/ valid use
cases.

-Barry

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