* Relaxed the argument restrictions for non-operator methods. They now
allow any iterable instead of requiring a set. This makes the module
a little easier to use and paves the way for an efficient C
implementation which can take better advantage of iterable arguments
while screening out immutables.
* Deprecated Set.update() because it now duplicates Set.union_update()
* Adapted the tests and docs to include the above changes.
* Added more test coverage including testing identities and checking
to make sure non-restartable generators work as arguments.
Will backport to Py2.3.1 so that the interface remains consistent
across versions. The deprecation of update() will be changed to
a FutureWarning.
* Positive wording for the description of why < and > and = can all
be False.
* Move to a three column table format that puts long method names
side-by-side with their operator equivalents
* Mention that KeyError can be raised by Set.pop() and Set.remove().
* Minor tweaks to the examples.
Will backport as soon as Fred rebuilds the docs so I can confirm
the tables formatted properly
underlying dictionaries, there were no reasonable use cases (lexicographic
sorting of a list of sets is somewhat esoteric). Frees the operators
for other uses (such as strict subset and superset comparisons).
Updated documentation and test suite accordingly.
Fred Drake
Raymond Hettinger
Tim Peters