Hi Pradeep Singh. Seems that there are some issues with requests 2.13.0. Try to install requests==2.12.0 Best wishes, _______________ Alexander Chadin, Engineer Software Solutions Department Servionica Ltd. Work email: a.chadin at servionica.ru<mailto:a.chadin at servionica.ru> Mobile: +7(916)693-58-81 On 28 Jan 2017, at 19:31, Pradeep Singh <ps4openstack at gmail.com<mailto:ps4openstack at gmail.com>> wrote: Hello All, I am installing watcher following[1]. I have executed the commands mentioned here[2] to install the watcher. When i execute the command 'watcher strategy list', i am getting below exception: AttributeError: 'module' object has no attribute 'epoll' in watcher-api. Full stack trace of the logs are here[3]. Could you please help me in resolving the issue. Thanks. [1]http://docs.openstack.org/developer/watcher/deploy/installation.html. [2]http://paste.openstack.org/show/596805/ [3]http://paste.openstack.org/show/596803/ __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: OpenStack-dev-request at lists.openstack.org<mailto:OpenStack-dev-request at lists.openstack.org>?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20170131/2812a68a/attachment.html>