def clean_semver(cls, version_spec):
        return re.sub(r"([<>=~])\s+?v?", "\\1", version_spec, re.IGNORECASE)
def __init__(self, queue, level, formatter):
        super(QueueingLogHandler, self).__init__()
        self._queue = queue
        self.setLevel(level)
        self.setFormatter(formatter)