Metadata-Version: 1.1
Name: package-versions
Version: 1.1
Summary: Version numbers for your package system: parsing of requirements, comparison of version ranges, etc.
Home-page: https://github.com/mverleg/package_versions
Author: (the author)
Author-email: mdilligaf@gmail.com
License: BSD 3-clause “Revised” License
Description: 
        Package versions
        -------------------------------
        
        Implements version numbers, e.g. for use in your custom package/module/extension/addon system.
        
        Version ranges are stored as VersionRange and can be created using syntax similar to pip:
        
        .. code-block:: python
        
            VersionRange('==3')
            # >=3.0,<4.0
            VersionRange('<=2.5,>1')
            # >=2.0,<=2.5
            VersionRange('==2.*')
            # >=2.0,<3.0
        
        The main functionality is the combination of version ranges as best as possible, which is needed in case two packages rely on the same third package, but with different version limitations:
        
        .. code-block:: python
        
            VersionRange('<=2.5,>1') & VersionRange('==2.*')
            #>=2.0,<=2.5
            VersionRange('<4.4') & VersionRange('>0,<=7')
            #>=1.0,<4.4
            VersionRange('<4.4') & VersionRange('>5.3')
            #==5.3 and an optional warning or error (due to the mismatch in range)
        
        It can also choose the most appropriate version among a list of options:
        
        .. code-block:: python
        
            options = ['0.0.0', '2.8.', '2.1.unordered', '1.0.dev1', '2.2.words', '2.9.9', '999.999.0']
            VersionRange('>=2.2,<2.9').choose(options)
            # 2.8
            VersionRange('>2.2,<2.8').choose(options)
            # 2.8. and an optional warning or error (due to no match in range)
            VersionRange('>2.2').choose(options)
            # 999.999.0
        
        And parse package dependencies:
        
        .. code-block:: python
        
            parse_dependency('package>=3')
            # ('package', VersionRange(>=3.0))
            parse_dependency('specialname123>2.0,<3')
            # ('specialname123', VersionRange(>=2.1,<3.0))
            parse_dependencies('packA>1.3,<6\n#packskip==*\n\npackB<3.4#,>1.2')
            # OrderedDict([('packa', VersionRange(>=1.4,<6.0)), ('packb', VersionRange(<=3.3))])
        
        For a lot more examples, see the unit tests.
        
        Installation
        -------------------------------
        
        Install using:
        
            pip install package-versions
        
        Import using:
        
            from package_versions import VersionRange, parse_dependencies
        
        You're ready to go!
        
        Restrictions
        -------------------------------
        
        A restriction this package imposes is that it assumed that feature versions are pairs of at most two integers, like `11.7` but not `11.7.3` or `1.7dev`.
        
        Version `11.7.3` is assumed to contain only bug-fixes compared to `11.7`, and as such will always be preferred. Personally I like this unambiguous interpretation, but it's up to you if you accept it.
        
        Due to internal representation, there is a maximum for major and minor versions of 46340.
        
        Package names roughly follow Python module naming guide (start with a letter, lowercase, not too long). Note that some systems treat upper and lower case as the same, so it's probably wise to keep this restriction.
        
        Tests
        -------------------------------
        
        There are a lot of py.test unit tests that you can run using:
        
        .. code-block:: bash
        
            python3 -m pytest
        
        License
        -------------------------------
        
        BSD 3-clause “Revised” License. Keep the license file and understand that I'm not to be held liable, and then you're free to do pretty much whatever.
        
        
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: Natural Language :: English
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.3
Classifier: Programming Language :: Python :: 3.4
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Software Development :: Libraries :: Python Modules
