error python setup.py

[Taynan Breno]

The directory '/home/breno/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/breno/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Requirement already up-to-date: selenium in /home/breno/.local/lib/python2.7/site-packages
Requirement already up-to-date: urllib3 in /home/breno/.local/lib/python2.7/site-packages (from selenium)
The directory '/home/breno/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/breno/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Requirement already satisfied: Pysocks in /home/breno/.local/lib/python2.7/site-packages
The directory '/home/breno/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/breno/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Requirement already satisfied: pyvirtualdisplay in /home/breno/.local/lib/python2.7/site-packages
Requirement already satisfied: EasyProcess in /home/breno/.local/lib/python2.7/site-packages (from pyvirtualdisplay)
Lendo listas de pacotes... Pronto
Construindo árvore de dependências       
Lendo informação de estado... Pronto
xvfb is already the newest version (2:1.19.6-1ubuntu4.4).
0 pacotes atualizados, 0 pacotes novos instalados, 0 a serem removidos e 4 não atualizados.
Running Firefox as root in a regular user's session is not supported.  ($HOME is /home/breno which is owned by breno.)
Traceback (most recent call last):
  File "setup.py", line 16, in <module>
    version  = result[marker:].splitlines()[0]     # spliting the output, the version is something like aa.bb.cc
IndexError: list index out of range