I make quit a few command line apps to help with daily tasks. It helps to have meaningful feedback and reporting while these are running. Adding color helps with quickly identifying issues or just keeping quick tabs on the running scripts.
run = '\033[1;97m[~]\033[1;m'
bad = '\033[1;31m[-]\033[1;m'
good = '\033[1;32m[+]\033[1;m'
info = '\033[1;33m[!]\033[1;m'
que = '\033[1;34m[?]\033[1;m'
These escape codes go well beyond just simple colors though. Check this link below for more CLI goodies.
http://www.lihaoyi.com/post/BuildyourownCommandLinewithANSIescapecodes.html