Hi, I am a beginner with SDN and ryu. In order to develop an SDN app, i was following the tutorial from https://github.com/osrg/ryu/wiki/OpenFlow_Tutorial, to start with.
While trying to run 'PYTHONPATH=. ./bin/ryu-manager ryu/app/simple_switch.py' from xterm controller window, I am getting the following Traceback (most recent call last): File "/usr/local/bin/ryu-manager", line 9, in <module> load_entry_point('ryu==3.2', 'console_scripts', 'ryu-manager')() File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 343, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2307, in load_entry_point return ep.load() File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2013, in load entry = __import__(self.module_name, globals(),globals(), ['__name__']) File "/home/ryu/ryu/ryu/cmd/manager.py", line 43, in <module> from ryu.topology import switches File "/home/ryu/ryu/ryu/topology/switches.py", line 32, in <module> from ryu.lib.packet import packet, ethernet, lldp File "/home/ryu/ryu/ryu/lib/packet/__init__.py", line 6, in <module> from . import (ethernet, arp, icmp, icmpv6, ipv4, ipv6, lldp, mpls, packet, File "/home/ryu/ryu/ryu/lib/packet/ethernet.py", line 17, in <module> from . import packet_base File "/home/ryu/ryu/ryu/lib/packet/packet_base.py", line 21, in <module> @six.add_metaclass(abc.ABCMeta) AttributeError: 'module' object has no attribute 'add_metaclass' Google search recommended to install six, that I did, but it's still the same. Any workaround? Thanks, Shailvi
------------------------------------------------------------------------------
_______________________________________________ Ryu-devel mailing list Ryu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ryu-devel