Why doesn't Python (error msg) tell me WHAT the actual (arg) values are ?

[Peter J. Holzer]

On 2023-02-25 08:47:00 +1300, dn via Python-list wrote:
> That said, have observed coders 'graduating' from other languages, making
> wider use of assert - assumed to be more data (value) sanity-checks than
> typing, but ...
> 
> Do you use assert frequently?

Not very often, but I do use it. Sometimes for its intended purpose
(i.e. to guard against bugs or wrong assumptions), sometimes just to
guard incomplete or sloppy code (e.g. browsing through some projects I
find
    assert len(data["structure"]["dimensions"]["observation"]) == 1
(incomplete code - I didn't bother to implement multiple observations)
and
    assert(header[0] == "Monat (JJJJMM)")
(the code below is sloppy. Instead of fixing it I just made the original
programmer's assumptions explicit)
and of course
    assert False
(this point should never be reached)).

        hp

-- 
   _  | Peter J. Holzer    | Story must make more sense than reality.
|_|_) |                    |
| |   | hjp at hjp.at         |    -- Charles Stross, "Creative writing
__/   | http://www.hjp.at/ |       challenge!"
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