5 февр. 2010 г. · Python != operation vs "is not" · Object identity: When you create an object, you can assign it to a variable. · Object equality: When you ...

19 дек. 2010 г. · The operators is and is not test for object identity: x is y is true if and only if x and y are the same object. x is not y yields the inverse truth value.

7 дек. 2012 г. · '==' operator doesn't compare by references, ie. if a and b are different objects with same values, a == b is True.

23 июл. 2021 г. · The not keyword is a logical operator. The return value will be True if the statement(s) is not True and the return value will be False if the statement(s) is ...

27 янв. 2014 г. · You shouldn't be using is not for that in Python. is is for testing whether two names refer to the same object, not whether the objects are ...

25 апр. 2011 г. · Python: Difference between != and "is not" [duplicate] · When you looked at the Python language reference for these two operators, what did you ...

16 июн. 2012 г. · There's the != (not equal) operator that returns True when two values differ, though be careful with the types because "1" != 1.

11 июн. 2015 г. · There are no implied relationships among the comparison operators. The truth of x==y does not imply that x!=y is false.

16 сент. 2017 г. · I'm trying to check if "i" is not equal to "test" or "test2". If I set "i" to str("test") or str("test2) then it will say "i is not test or test2".

29 апр. 2020 г. · It seems Python interprets "is not True" as a single expression, rather than "is (not True)" which is equivalent to "is False".