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This takes two software versions in the usual b"x.y" form and split them on the decimal character, converting both parts to ints, e.g. b"3.2" becomes (3, 2). It then does a comparison of the two tuples, and returns C{True} if C{version1} is greater than or equal to C{version2}. @param version1: The first version to compare as C{bytes}. @param version2: The second version to compare as C{bytes}. @return: C{True} if the first version is greater than or equal to the second. """ version1 = version1.decode("ascii") version2 = version2.decode("ascii") return StrictVersion(version1) >= StrictVersion(version2) def sort_versions(versions): """Sort a list of software versions in from the highest to the lowest. @param version: a C{list} of C{bytes} describing a version. """ strict_versions = sorted( [StrictVersion(version.decode("ascii")) for version in versions], reverse=True) return [str(strict_version).encode("ascii") for strict_version in strict_versions]