Hi Serdar, RYU works with ubuntu 16.04 / python 2.7 as well.
But you will get the tinyrpc python package error during the installation. Please do this as below, pip uninstall tinyrpc pip install tinyrpc==0.9.4 This will fix the error. Thanks suresh On Fri, Jul 31, 2020 at 7:21 PM Serdar Vural via Ryu-devel < ryu-devel@lists.sourceforge.net> wrote: > Thanks for the reply, Sujay. > > We are indeed running several Ryu controllers on Ubuntu 16.04 platforms > with Python 2.7. However, these were installed during the last two-three > years. We wanted to set up new systems with fresh Ubuntu 16.04, which comes > with Python 2.7 and Python 3.5, and followed the installation steps > outlined on the Ryu page, yet could not achieve to have a working system > with either 2.7 or 3.5. Just a feedback to the community. > > Have not tried on an Ubuntu 18.04 system yet. > > > > Cheers, > > Serdar > > > > *From:* Sujay Hegde <sujayss...@gmail.com> > *Sent:* 31 July 2020 13:54 > *To:* Vural, Serdar Dr (Elec Electronic Eng) <s.vu...@surrey.ac.uk> > *Subject:* Re: [Ryu-devel] Errors in the ryu controller > > > > Ryu works with python 2.7 I'm using it on Ubuntu 16.04 > > > > I Suggest to upgrade to Ubuntu 18.04 > > And a use python 3.5 and above as 2.7 is deprecated > > > > On Fri, 31 Jul 2020, 3:41 pm Serdar Vural via Ryu-devel, < > ryu-devel@lists.sourceforge.net> wrote: > > Hi, thanks for the reply and the link. > > We’ve found out that Ryu no longer works with Python 2.7 or Python 3.5 (on > Ubuntu 16.04 OS). > > We’ve solved the issue by running Ryu in a virtual environment where we > have Python 3.7. > > > > Regards, > > Serdar > > > > *From:* Aymen AlAwadi <aymen.alaw...@gmail.com> > *Sent:* 30 July 2020 14:30 > *To:* Vural, Serdar Dr (Elec Electronic Eng) <s.vu...@surrey.ac.uk> > *Subject:* Re: [Ryu-devel] Errors in the ryu controller > > > > > > Hi, > > Try to install it in Ubuntu 16.04.04 LTS. > > Follow this tutorial: > > > https://github.com/knetsolutions/learn-sdn-with-ryu/blob/master/sdn_test_bed_setup.md > <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fknetsolutions%2Flearn-sdn-with-ryu%2Fblob%2Fmaster%2Fsdn_test_bed_setup.md&data=02%7C01%7Cs.vural%40surrey.ac.uk%7Cab37996a0c4a4e64ec3f08d83550c347%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637317968277541352&sdata=NhZFUFCZnSaOHWjvlgqQUYrYouyT8AYN9aZVPEM5Ymc%3D&reserved=0> > > > Thanks and Regards, > > Aymen > > > > On Thu, Jul 30, 2020 at 3:20 PM Serdar Vural via Ryu-devel < > ryu-devel@lists.sourceforge.net> wrote: > > Hello, > > > > I’m facing the exact same issue as in below – could you please direct me > for a solution. > > This is an Ubuntu 16.04 system (comes with Python 3.5 and Python2.7 by > default). > > > > Followed the instructions on https://github.com/faucetsdn/ryu > <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Ffaucetsdn%2Fryu&data=02%7C01%7Cs.vural%40surrey.ac.uk%7Cab37996a0c4a4e64ec3f08d83550c347%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637317968277551345&sdata=PRZKZCn4FjySlwlhxxly2zz4ddpbsaoqyxIJb0Px304%3D&reserved=0> > > > > Kind Regards, > > Serdar > > > > *From:* brajesh umrao <brajeshumra...@gmail.com> > *Sent:* 22 July 2020 00:18 > *To:* Ryu-devel@lists.sourceforge.net > *Subject:* [Ryu-devel] Errors in the ryu controller > > > > 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 > > _______________________________________________ > Ryu-devel mailing list > Ryu-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ryu-devel > <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Fryu-devel&data=02%7C01%7Cs.vural%40surrey.ac.uk%7Cab37996a0c4a4e64ec3f08d83550c347%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637317968277561340&sdata=V2BOZbnSft8NBUiQ5Lbdm1BV2EdzEUKKhNgLEQLZrzo%3D&reserved=0> > > _______________________________________________ > Ryu-devel mailing list > Ryu-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ryu-devel > <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Fryu-devel&data=02%7C01%7Cs.vural%40surrey.ac.uk%7Cab37996a0c4a4e64ec3f08d83550c347%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C1%7C637317968277561340&sdata=V2BOZbnSft8NBUiQ5Lbdm1BV2EdzEUKKhNgLEQLZrzo%3D&reserved=0> > > _______________________________________________ > Ryu-devel mailing list > Ryu-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ryu-devel > -- *Regards, * *Knet solutions.* *RYU SDN Training Course: UDEMY LINK <https://www.udemy.com/course/beginners-sdn-course-with-ryu-controller-practical-handson/?referralCode=3C4DD08C0DB3F68704B7>* ODL SDN Training Course : UDEMY Link <https://www.udemy.com/course/sdn-opendaylight-crash-course/?referralCode=7BEB1B23E24F64BDC435> NetConf/YANG Training Course : UDEMY Link <https://www.udemy.com/course/learn-netconf-yang-sdn-opendaylight-with-practical/?referralCode=E5850EEDC3BA56E19507> Whatsapp/Mobile: * +919445042007* website: http://knetsolutions.in/ Tutorials: http://learning.knetsolutions.in/ Facebook Page : https://www.facebook.com/sdntraining/ youtube : https://www.youtube.com/channel/UCTD6X9_oDqIYs_xpE7moFnQ
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