[Bug 1445764] Re: "The executable /usr/bin/python3.4 does not exist" error when Installing Mailman 3 on Centos 7

I have successfully installed Virtualenv 12.1.1 using this manual

https://virtualenv.pypa.io/en/latest/installation.html

and this source file:

https://pypi.python.org/pypi/virtualenv/12.1.1#downloads

$ curl -O https://pypi.python.org/packages/source/v/virtualenv/virtualenv-12.1.1.tar.g... $ tar xvfz virtualenv-12.1.1.tar.gz $ cd virtualenv-12.1.1 $ python setup.py install

Now 'buildout' command completes successfully.

I have no time to check if everything installed correct right now but I will do it later today.

I think this virtualenv problem should be reflected in the installation manual.