api.py 文件源码

def get_latest_version(self, package):
        pkg = self.get_package(package)
        releases = {
            (parse(rel), rel): first_upload(files)
            # The unparsed version string needs to be kept around because the
            # alternative approach (stringifying the Version object once
            # comparisons are done) can result in a different string (e.g.,
            # "2001.01.01" becomes "2001.1.1"), leading to a 404.
            for rel, files in pkg["releases"].items()
        }
        candidates = releases.keys()
        if not self.pre:
            candidates = filter(lambda v: not v[0].is_prerelease, candidates)
        if self.newest:
            latest = max(
                filter(releases.__getitem__, candidates),
                key=releases.__getitem__,
                default=None,
            )
        else:
            latest = max(candidates, default=None)
        if latest is None:
            raise QyPIError(package + ': no suitable versions available')
        latest = latest[1]
        if pkg["info"]["version"] == latest:
            return pkg
        else:
            return self.get_version(package, latest)