On Friday 02 May 2008 11:48:26 Alexander Michael wrote:

On Fri, May 2, 2008 at 12:30 PM, Pete <pfein@pobox.com> wrote:

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Hi-

What's the proper way to spell "any version in the 3.0.x series" if a project has a 3.1.0beta3 release?

Specifically, CherryPy has both 3.0.2 and 3.1.0beta3 releases. I'd like to depend on any 3.0.x

I've tried both 'CherryPy < 3.1' and 'CherryPy < 3.1.0' in my install_requires, and both cause setuptools to pull 3.1.0beta3.

I realize I can use 'CherryPy == 3.0.2' but that defeats the "any 3.0.x" idea...

I find this surprising as well, but the answer is:

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import pkg_resources v = pkg_resources.parse_version v('3.1.0beta3') < v('3.1.0')

True

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v('3.1.0beta3') < v('3.1.0a0')

False

I wish it was "easier" to say "3.1.x" (as in any final sub-point release in the 3 series) or "1.x" (as in any final version 1 release) which didn't allow development, alpha, beta, candidate, etc. releases. Is there?

When installing via easy_install, I typically say "<3.0.99", but I would never embed that requirement into code. A lot of our requirements are specified as "<3.1.0a" Bryce