.bashrc to show git branch

gistfile1.txt

# snip .bashrc
function bash_git_branch
{
  git branch 2> /dev/null | grep \* | python -c "print '['+raw_input()[2:]+']'" 2> /dev/null
}

#snip .bashrc
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w$(bash_git_branch)\$ '
#snip the rest