- check_call("ovs-ofctl add-flow %s in_port=%s,priority=100,action=output:%s" % (br, pn1, pn2), shell=True)
- check_call("ovs-ofctl add-flow %s in_port=%s,priority=100,action=output:%s" % (br, pn2, pn1), shell=True)
+ check_call(
+ "ovs-ofctl add-flow %s in_port=%s,priority=100,action=output:%s" %
+ (br, pn1, pn2), shell=True)
+ check_call(
+ "ovs-ofctl add-flow %s in_port=%s,priority=100,action=output:%s" %
+ (br, pn2, pn1), shell=True)