> Hi
> I did a git clone of Ryu today (Ryu-manager version 3.4). When I ran the
> manager with ryu/topology/switches and ryu/topology/dumper, I got the
> ArgsAlreadyParsedError error. I read on the archive that it was fixed
> previously. But, looks like there's some issue now.
>
> ubuntu@ubuntu:~/ryu$ ./bin/ryu-manager --verbose --observe-links
> ryu/topology/switches ryu/topology/dumper
please use
ryu.topology.switches
or
ryu/topology/switches.py
i recommend the former.
YAMAMOTO Takashi
> loading app ryu/topology/switches
> Traceback (most recent call last):
> File "./bin/ryu-manager", line 19, in <module>
> main()
> File "/home/ubuntu/ryu/ryu/cmd/manager.py", line 70, in main
> app_mgr.load_apps(app_lists)
> File "/home/ubuntu/ryu/ryu/base/app_manager.py", line 210, in load_apps
> cls = self.load_app(app_cls_name)
> File "/home/ubuntu/ryu/ryu/base/app_manager.py", line 194, in load_app
> mod = utils.import_module(name)
> File "/home/ubuntu/ryu/ryu/utils.py", line 86, in import_module
> __import__(name)
> File "/home/ubuntu/ryu/ryu/topology/switches.py", line 52, in <module>
> help='link discovery: explicitly drop lldp packet in')
> File "/usr/local/lib/python2.7/dist-packages/oslo/config/cfg.py", line
> 1579, in __inner
> result = f(self, *args, **kwargs)
> File "/usr/local/lib/python2.7/dist-packages/oslo/config/cfg.py", line
> 1741, in register_cli_opts
> self.register_cli_opt(opt, group, clear_cache=False)
> File "/usr/local/lib/python2.7/dist-packages/oslo/config/cfg.py", line
> 1583, in __inner
> return f(self, *args, **kwargs)
> File "/usr/local/lib/python2.7/dist-packages/oslo/config/cfg.py", line
> 1733, in register_cli_opt
> raise ArgsAlreadyParsedError("cannot register CLI option")
> oslo.config.cfg.ArgsAlreadyParsedError: arguments already parsed: cannot
> register CLI option
>
> When I did a dump of the _args in the code that threw the
> ArgsAlreadyParsedError, I saw the following entries in it:
> ['--verbose', '--observe-links', 'ryu/topology/switches',
> 'ryu/topology/dumper']
>
> What am I doing wrong? I haven't made any changes after the git pull.
>
> Thanks
> Srini.
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