[Python-Dev] pending deprecation warning for Set.update
nas-python at python.ca
Wed Sep 17 12:44:35 EDT 2003
On Wed, Sep 17, 2003 at 12:02:00PM -0400, Raymond Hettinger wrote:
> The verbosity issue weighs less because there is the __ior__ operator
> alternative: a |= b. That is succinct as you can get.
>>> from sets import Set
>>> s = Set()
>>> s |= [1, 2, 3]
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/www/plat/python2.3/lib/python2.3/sets.py", line 420, in __ior__
File "/www/plat/python2.3/lib/python2.3/sets.py", line 313, in _binary_sanity_check
raise TypeError, "Binary operation only permitted between sets"
TypeError: Binary operation only permitted between sets
>>> s.update([1, 2, 3])
Set([1, 2, 3])
I quite a few instances of update() that will have to be changed to
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