Can't compare strings with symbols?

Asked Feb 23 '19 at 20:56

Active Feb 23 '19 at 22:30

Viewed 14 times

Why can't I compare a string with a string containing an operator?

My issue:

python
Python 3.7.2 (default, Jan 10 2019, 23:51:51)
[GCC 8.2.1 20181127] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> val = "<="
>>> val
'<='
>>> val is "<="
False
>>>

Edit #1: I just now realized == works, but why is this? Surely they should both return true?

Edit #2: I'm an idiot, thanks for the info!

edited Feb 23 '19 at 22:29

martineau

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asked Feb 23 '19 at 20:56

Sarah Ohlin

Are you asking why `is` is returning false? – Carcigenicate Feb 23 '19 at 20:57
`is` is not `==`. – Klaus D. Feb 23 '19 at 20:58
Yeah, I'm not sure if i'm just not escaping these characters right but I wouldn't think I'd have to. – Sarah Ohlin Feb 23 '19 at 20:58
No. Don't use `is` for comparisons. – Daniel Roseman Feb 23 '19 at 20:59
Long story short, `is` checks if they'll literally the same object. Two strings with the same value aren't necessarily the same string in memory. – Carcigenicate Feb 23 '19 at 21:00
Ah, I see now. I'm coming from C++ so the `is` operator is foreign to me, but I got it now. Thanks! – Sarah Ohlin Feb 23 '19 at 21:01

Can't compare strings with symbols?

0 Answers0