tarball = '%s-%s.tar.gz' % (self.package_name.lower(), self.package_version)
cmd = 'scp %s %s@%s:' % (tarball, username, upload_server)
tarball = '%s-%s.tar.gz' % (self.package_name.lower(), self.package_version)
cmd = 'scp %s %s@%s:' % (tarball, username, upload_server)