[Distutils] PEP440 examples missing operator?

[Donald Stufft]

> On Dec 23, 2014, at 2:36 PM, Marcus Smith <qwcode at gmail.com> wrote:
> 
> 
> Heh, that’s actually a hold over from before we made specifiers mandatory. That needs updated.
> 
> you mean made operators mandatory?
> so the bit about "version identifier without any comparison operator" needs to be removed?

Yea.

Originally PEP 426 changed the syntax to be ``foo (==2.0)`` and such, and in that regards it made sense
to indicate a default operation for ``foo (2.0)``. However we removed them because:

* That syntax is backwards incompatible with the syntax that setuptools uses, and it’s sort of a pain to
  enter on the CLI.
* A default isn’t that useful, no matter what we pick it’s going to be wrong, originally PEP 386 had it
  equal to == (but a weird == that doesn’t make sense to me), then PEP 440 originally changed it to
  ~= but that doesn’t make sense for date based releases which would be better implemented as
  >= or >.

---
Donald Stufft
PGP: 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA

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