Counterintuitive Python behavior
Skip Montanaro
skip at pobox.com
Wed Apr 17 12:29:45 EDT 2002
Greg> There should have been an operator in Python that says when
Greg> objects are conceptually the same. For the moment, call it "eq".
Greg> The following would hold:
Greg> 3 eq 3
Greg> not (3 eq 4)
Greg> a eq a # PROVIDED a HAS A VALUE
Greg> "foo" eq "foo"
Greg> not ([] eq [])
Greg> not ({} eq {})
Greg> () eq ()
Guido's time machine strikes again:
>>> 3 is 3
True
>>> not (3 is 4)
True
>>> a = "sdfsdf"
>>> a is a
True
>>> "foo" is "foo"
True
>>> not ([] is [])
True
>>> not ({} is {})
True
>>> () is ()
True
--
Skip Montanaro (skip at pobox.com - http://www.mojam.com/)
More information about the Python-list
mailing list