It is 1.10.1 version here on Centos 7. I have installed setuptools 15.1 but it can't help me to install 'virtualenv' newer than 1.10.1: [root@host ~]# easy_install virtualenv # note that correct spelling easy_install, not easy-install! Searching for virtualenv Best match: virtualenv 1.10.1 Adding virtualenv 1.10.1 to easy-install.pth file Using /usr/lib/python2.7/site-packages Processing dependencies for virtualenv Finished processing dependencies for virtualenv --- Did I miss something, Mark? -- You received this bug notification because you are a member of Mailman Coders, which is subscribed to GNU Mailman. https://bugs.launchpad.net/bugs/1445764 Title: "The executable /usr/bin/python3.4 does not exist" error when Installing Mailman 3 on Centos 7 To manage notifications about this bug go to: https://bugs.launchpad.net/mailman/+bug/1445764/+subscriptions