My custom PS1 prompt with virtualenv and git support.

ps1.sh

# Define some colors
RED="\[\e[0;38;5;196m\]"
GREEN="\[\e[01;32m\]"
BLUE="\[\e[01;34m\]"
WHITE="\[\e[37;1m\]"
LIGHT_BLUE="\[\e[36m\]"
PURPLE="\[\e[35m\]"
NIL="\[\e[m\]"

function git_branch(){
    # https://gist.github.com/henrik/31631
    branch=$(git symbolic-ref HEAD 2>/dev/null)
    if [[ -z $branch ]]; then return; fi

    branch=${branch#refs/heads/}  # apparently faster than sed
    dirty=""
    if [[ -n "`git status --porcelain 2>/dev/null`"  ]]; then
        dirty="${RED}✘${NIL}"
    else
        dirty="${GREEN}✔${NIL}"
    fi

    echo -e "(git:${branch} ${dirty}) "
}

function virtualenv_info(){
    # Get Virtual Env
    if [[ -n "$VIRTUAL_ENV" ]]; then
        # Strip out the path and just leave the env name
        venv="${VIRTUAL_ENV##*/}"
    else
        # In case you don't have one activated
        venv=''
    fi
    [[ -n "$venv" ]] && echo "(venv:$venv) "
}

function set_custom_ps1(){
    # This is set in order to disable the default (virtualenv_name) prefix in PS1
    export VIRTUAL_ENV_DISABLE_PROMPT=1

    local USER="${PURPLE}\u${NIL}"
    local CURRENT_PATH="${LIGHT_BLUE}[\w]${NIL}"

    local VENV="\$(virtualenv_info)";
    # local GIT="\$(git_branch)";
    local ARROW="${WHITE}➜${NIL}"

    export PS1="${USER} in ${CURRENT_PATH}\n${VENV}$(git_branch)${ARROW} ${NIL}"
    export PS2="${ARROW}${NIL} "

    export CUSTOM_PS1_LOADED=1
}

PROMPT_COMMAND=set_custom_ps1