releases.py 文件源码

python
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项目:tools 作者: freedict 项目源码 文件源码
def get_latest_version(release_information):
    """Iterate over object and return the latest version, as defined by
    distutils.version.StrictVersion. The argument is intended to be a dictionary
    with versions as key, but anything outputing version strings will work."""
    latest = None
    latest_strict = None # might contain '-' replaced through '.'
    for version in release_information:
        version_strict = version[:]
        if '-' in version_strict:
            version_strict = version_strict.replace('-', '.')
        try:
            version_strict = distutils.version.StrictVersion(version_strict)
        except ValueError as e:
            raise ReleaseError(e.args)
        if not latest:
            latest = version
            latest_strict = version_strict
        else:
            if version_strict > latest_strict:
                latest = version
                latest_strict = version_strict
    if not latest:
        raise ReleaseError("No versions found for " % repr(release_information))
    return latest
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