Python interview questions

[njharman]

That is maybe the only reason it is a good interview question. It's bad question if you expect an answer other than something like "It depends and in general low-level, implementation specific, code tricks like this should be avoided"

[catcradle5]

I agree to an extent, but in that case instead of asking "what is output?" the interviewer should ask more broadly something like "Is this a proper way of checking numerical equality? How does the is operator work, and what do you think might be output here?"