Dear sir,
I, Brajesh Kumar Umrao currently working as a research scholar at MNNIT,
Allahabad U.P., India. I am facing a problem while installing the ryu
controller.
Kindly, suggest proper solution.
*brajesh@brajesh:~/ryu$ PYTHONPATH=. ./bin/ryu-manager
ryu.app.simple_switch*
Traceback (most recent call last):
File "./bin/ryu-manager", line 18, in <module>
from ryu.cmd.manager import main
File "/home/brajesh/ryu/ryu/cmd/manager.py", line 22, in
<module>
from ryu.lib import hub
File "/home/brajesh/ryu/ryu/lib/hub.py", line 19, in <module>
from ryu.lib import ip
File "/home/brajesh/ryu/ryu/lib/ip.py", line 19, in <module>
import netaddr
ImportError: No module named netaddr
*brajesh@brajesh:~/ryu$ ryu-manager*
Traceback (most recent call last):
File "/home/brajesh/.local/bin/ryu-manager", line 7, in <module>
from ryu.cmd.manager import main
File
"/home/brajesh/.local/lib/python3.5/site-packages/ryu/cmd/manager.py", line
22, in <module>
from ryu.lib import hub
File "/home/brajesh/.local/lib/python3.5/site-packages/ryu/lib/hub.py",
line 30, in <module>
import eventlet
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/__init__.py",
line 10, in <module>
from eventlet import convenience
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/convenience.py",
line 7, in <module>
from eventlet.green import socket
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/green/socket.py",
line 21, in <module>
from eventlet.support import greendns
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/support/greendns.py",
line 64, in <module>
setattr(dns, pkg, import_patched('dns.' + pkg))
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/support/greendns.py",
line 59, in import_patched
return patcher.import_patched(module_name, **modules)
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/patcher.py",
line 126, in import_patched
*additional_modules + tuple(kw_additional_modules.items()))
File
"/home/brajesh/.local/lib/python3.5/site-packages/eventlet/patcher.py",
line 100, in inject
module = __import__(module_name, {}, {}, module_name.split('.')[:-1])
File
"/home/brajesh/.local/lib/python3.5/site-packages/dns/asyncbackend.py",
line 41
raise NotImplementedError(f'unimplemented async backend {name}')
^
--
Thanks & Regards
Brajesh Kumar Umrao,
Research Scholar,
CSED, MNNIT Allahabad, Allahabad (U.P.)
Mo.: +91 988 9639 175
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