Gael Varoquaux wrote:
> Guys, I agree with all this. It's not about the theory, but about the
> user experience. The user just types along, and doesn't read books and
> manuals. A least the average user. And we want to make it as easy as
> possible for her.
Yes, we all like that.
Which is why it was decided that __repr_ was the better default for
display at the command line. See my example, too many questions along
the lines of "python has a bug!" -- I'm guessing a very large fraction
of those were about FP issues -- poorly understood my most newbies.
I think it is clearly the best choice for things like a single floating
point number, but for far more complex objects? who knows. As an
example, look at the default behavior of numpy arrays:
>>> a = numpy.ones((3,3))
>>> a
array([[ 1., 1., 1.],
[ 1., 1., 1.],
[ 1., 1., 1.]])
Classic __repr__.
but:
>>> a = numpy.ones((1000,1000))
>>> a
array([[ 1., 1., 1., ..., 1., 1., 1.],
[ 1., 1., 1., ..., 1., 1., 1.],
[ 1., 1., 1., ..., 1., 1., 1.],
...,
[ 1., 1., 1., ..., 1., 1., 1.],
[ 1., 1., 1., ..., 1., 1., 1.],
[ 1., 1., 1., ..., 1., 1., 1.]])
no longer follows the __repr__ rules. I think that's an excellent choice
-- it's really never useful to spew something that large to the screen.
Given this discussion, what are you currently proposing?
-Chris
--
Christopher Barker, Ph.D.
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