On May 20, 2:39 am, destroooooy <[EMAIL PROTECTED]> wrote: > I'm wondering what is the canonical usage of the keywords 'is' and > 'not' when you're writing conditionals and loops. The one I've been > following is completely arbitrary--I use the symbols '==', '!=' for > numerical comparisons and the words 'is', 'not' for everything else. > > Thanks in advance!
If we're talking in English, it would be like this: There is a person with a black hair called A There is another person with a black hair called B A has a nickname C All of these statements are true: A.haircolor == B.haircolor A is C but this is NOT true: A is B # is False and this is debatable: A == B whether A is similar enough to B so that they can be said to be equal is debatable and depends on the purpose of the comparison (which is why equality comparison is overridable while identity comparison is not). -- http://mail.python.org/mailman/listinfo/python-list
