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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def slack(self):
 """Official slackware repository """

        default = "http://mirrors.slackware.com/slackware/"
        if self.meta.arch.startswith("arm"):
            default = "http://ftp.arm.slackware.com/slackwarearm/"
        if os.path.isfile("/etc/slpkg/slackware-mirrors"):
            mirrors = Utils().read_file(
                self.meta.conf_path + "slackware-mirrors")
            for line in mirrors.splitlines():
                line = line.rstrip()
                if not line.startswith("#") and line:
                    default = line.split()[-1]
        if not default.endswith("/"):
            default += "/"
        return default