# pip bash completion start
_pip2_completion()
{
    COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \
                   COMP_CWORD=$COMP_CWORD \
                   PIP_AUTO_COMPLETE=1 $1 2>/dev/null ) )
}
complete -o default -F _pip2_completion pip pip{,-}{2,2.7}}
# pip bash completion end