Possibly another breaking change between 2.6.0 and 2.7.0 (not fixed in 2.8.1) about python-semanticversion

[rbarrois]

Partial versions were only intended as part of the Spec side of things; a Spec should only match a non-partial Version.
It might have worked, but that wasn't expected.

Have you tried using Version.coerce('1') in Spec('>=1,<2')?

[elemental-lf]

Thanks for fast reply. I've adapted my code to use coerce and now everything is working again with 2.8.1. But I still think this is a breaking change as the public interface in 2.6.0 is:

class Version(object):
[...]
    def __init__(self, version_string, partial=False):
        major, minor, patch, prerelease, build = self.parse(version_string, partial)
[...]

So partial is a valid public parameter for the constructor and it's handled by parse accordingly. So intentions are not really relevant I think, the public interface and the behaviour of the code is. And I just found that this usage was even documented in the old README.rst:

In order to define "relaxed" version strings, you must pass in partial=True:
>>> v = semantic_version.Version('0.1', partial=True)
>>> list(v)
[0, 1, None, None, None]

[rbarrois]

The usage of partial versions was documented, and is still supported!
It's only the Spec class that wasn't designed to work with a partial version, nor documented as such ;)

[elemental-lf]

Thanks for the clarification. As I've adapted my code and nobody else complained about this particular issue yet I'm going to close it.