[Python-Dev] Not-a-Number (original) (raw)

Ben Finney ben+python at benfinney.id.au
Fri Apr 29 14:57:34 CEST 2011

Steven D'Aprano <steve at pearwood.info> writes:

I'm sorry for my lack of clarity. I'm referring to functions which potentially produce NANs, not the exceptions themselves. A calculation which might have produced a (quiet) NAN as the result instead raises an exception (which I'm treating as equivalent to a signal).

Yes, it produces a Python exception, which is not a Python NaN.

If you want to talk about “signalling NaNs”, you'll have to distinguish that (every time!) so you're not misunderstood as referring to a Python NaN object.

-- \ “It's my belief we developed language because of our deep inner | `\ need to complain.” —Jane Wagner, via Lily Tomlin | o_) | Ben Finney

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