promptsetup() {
	# Color definitions for prompt
	local fg_brightred='\[$(tput setaf 9)\]'
	local fg_blue='\[$(tput setaf 4)\]'
	local fg_magenta='\[$(tput setaf 13)\]'
	local fg_cyan='\[$(tput setaf 6)\]'
	local fg_brightcyan='\[$(tput setaf 14)\]'
	local fg_green='\[$(tput setaf 2)\]'
	local reset='\[$(tput sgr0)\]'
	local hostname='\h'
	local mixin

	# [hh:mm][username@hostname pwd]$

	# Remotely, hostname is red.
	[ -n "$SSH_CLIENT" ] && hostname="${fg_brightred}\h${reset}"

	# If in a python venv, add venv name in green.
	[ -n "$VIRTUAL_ENV" ] && mixin=" ${fg_green}$(basename $VIRTUAL_ENV)${reset}"

	# If in a vcsh repo env, add repo name in magenta.
	[ -n "$VCSH_REPO_NAME" ] && mixin=" ${fg_magenta}$VCSH_REPO_NAME${reset}"

	PS1="${fg_blue}[\A]${fg_cyan}[${fg_brightcyan}\u${fg_cyan}@${hostname}${mixin} ${fg_cyan}\W]${reset}\$ "
}

promptsetup