[Python-Dev] pending deprecation warning for Set.update (original) (raw)

Neil Schemenauer 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 "", line 1, in ? File "/www/plat/python2.3/lib/python2.3/sets.py", line 420, in ior self._binary_sanity_check(other) 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]) s Set([1, 2, 3])

I quite a few instances of update() that will have to be changed to union_update().

Neil



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