On Wednesday, February 22, 2023 at 11:57:45 PM UTC-8, Barry wrote:
> > On 23 Feb 2023, at 01:39, Hen Hanna <henh...@gmail.com> wrote:
> >
> > On Wednesday, February 22, 2023 at 3:46:21 PM UTC-8, Hen Hanna wrote:
> >> On Wednesday, February 22, 2023 at 12:05:34 PM UTC-8, Hen Hanna wrote:
> >>>> py bug.py
> >>> Traceback (most recent call last):
> >>> File "C:\Usenet\bug.py", line 5, in <module>
> >>> print( a + 12 )
> >>> TypeError: can only concatenate str (not "int") to str
> >>>
> >>>
> >>> Why doesn't Python (error msg) do the obvious thing and tell me
> >>> WHAT the actual (offending, arg) values are ?
> >>>
> >>> In many cases, it'd help to know what string the var A had , when the
> >>> error occurred.
> >>> ------------ i wouldn't have to put print(a) just above, to see.
> >>>
> >>>
> >>>
> >>>
> >>> ( pypy doesn't do that either, but Python makes programming (debugging)
> >>> so easy that i hardly feel any inconvenience.)
> >
> >
> > i see that my example would be (even) clearER with this one-line change:
> >
> > py bug.py
> >
> > Traceback (most recent call last):
> >
> > File "C:\Usenet\bug.py", line 5, in <module>
> > map( Func, fooBar( X, Y, X + Y ))
> >
> > TypeError: can only concatenate str (not "int") to str
> > attempt to call + with 'abc', 123
> > <--------------
> >
> >> i hope that NOW a few of you can see this as a genuine, (reasonable)
> >> question.
> >
> > Python seems so perfectly User-friendly that
> > i 'm so curious (puzzled) that it doesn't do the very obvious and easy
> > thing
> > of giving me this info:
> >
> > attempt to call + with 'abc',
> > 123 <--------------
> It is not easy to do that in a robust and reliable way for any object.
> You can end up in the code to generate the error message itself breaking.
> For example using unbounded CPU time when attempting to get the string repr
> of the variable.
>
> Barry
>
Python VM is seeing an "int" object (123) (and telling me that) ... so
it should be easy to print that "int" object
What does Python VM know ? and when does it know it ?
it seems like it is being playful, teasing (or mean), and hiding the
ball from me
--
https://mail.python.org/mailman/listinfo/python-list
