Right. You would still have to parse your expression into min/max vers. And
then you can use LooseVersion for the comparison:
minVer = LooseVersion("1.0.0")
maxVer = LooseVersion("1.3")
print minVer <= LooseVersion("1.2.5b") < maxVer
# True
Are you looking for something that handles the parsing of the range format
and the operators for you?
On Thu, Oct 9, 2014 at 8:20 AM, Marcus Ottosson <[email protected]>
wrote:
> But for what you are asking, have you seen the StrictVersion and
> LooseVersion classes available in distutils?
>
> Yeah, but they don’t handle ranges and they’re essentially the equivalent
> of comparing plain tuples, aside from the alpha/beta extras.
>
> assert (1, 0, 5) > (1, 0, 4)
>
>
>
> On 8 October 2014 19:31, Justin Israel <[email protected]> wrote:
>
>> I'm actually getting into this area a bit for some work related to env
>> and package management. But for what you are asking, have you seen the
>> StrictVersion and LooseVersion classes available in distutils?
>>
>> http://epydoc.sourceforge.net/stdlib/distutils.version.Version-class.html
>>
>> You can instantiate those with your version strings and compare them. I
>> use those in various code that needs to confirm min versions of available
>> libs
>> On 9/10/2014 6:17 AM, "Marcus Ottosson" <[email protected]> wrote:
>>
>>> Hi guys,
>>>
>>> I’m looking for a method of evaluating the version of a Python object
>>> and comparing it with another.
>>>
>>> The object may have a range of versions, such as “Anything above 1.0,
>>> but below 1.3.1” whereas the comparison version is fixed, such as “1.0.3”
>>>
>>> The object may look something like this:
>>>
>>> class MyObject(object):
>>> requires = "mylibrary>=1.0.0, <1.3"
>>>
>>> Whereas a function would compare the *requirement* with a fixed
>>> version, like this:
>>>
>>> assert is_compatible(MyObject.requires, (1, 0, 6)) is True
>>>
>>> This syntax is from the requirements.txt-style of syntaxes and is the
>>> one used with Python libraries in general. I implemented an example of this
>>> here:
>>> https://gist.github.com/mottosso/f4cb1c636fae3fc63ab0
>>>
>>> Another syntax I’m interested in trying was the Rez syntax, but they
>>> seem to fulfil much of the same requirements.
>>> http://nerdvegas.github.io/rez/#versioning
>>>
>>> Have anyone had experience with this sort of versioning? How are you
>>> dealing with this currently? What issues have you encountered?
>>>
>>> Best,
>>> Marcus
>>>
>>> --
>>> *Marcus Ottosson*
>>> [email protected]
>>>
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>
>
> --
> *Marcus Ottosson*
> [email protected]
>
> --
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