On 1/21/2020 1:32 PM, Chris Angelico wrote:
On Wed, Jan 22, 2020 at 4:03 AM Eric V. Smith <e...@trueblade.com> wrote:
The reason repr adds the '.0' that 'g' does not is to avoid this problem:
>>> type(eval(repr(17.0))) == type(17.0)
True
>>> type(eval(format(17.0, '.17g'))) == type(17.0)
False
The OP wasn't asking about eval, though, but about float. If you're
depending on the ability to eval the repr of a float, you also have to
concern yourself with inf and nan, which are not builtin names. But I
believe float(repr(x)) == x for any float x.
None the less, it's why repr adds the '.0' that 'g' does not.
Eric
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