How did you install python-zunclient? and how did you install openstackclient? My best guess is the mess up of python2/3 environment. Mind pasting output of the following commands?$ pip --version$ pip freeze$ pip3 freezeOn Sat, Aug 22, 2020 at 3:03 PM mahdi abbasi <mahdi.abbasi.2013@gmail.com> wrote:Hi openstack development team,I installed python-zunclient successfully but openstack appcontainer command steal return not found. Please help me.Best regardsMahdi