Print in terminal with colors using python

This somewhat depends on what platform you are on. The most common way to do this is by printing ANSI escape sequences. For a simple example, here's some python code from the blender build scripts:

class bcolors:
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'

def disable(self):
self.HEADER = ''
self.OKBLUE = ''
self.OKGREEN = ''
self.WARNING = ''
self.FAIL = ''
self.ENDC = ''

To use code like this, you can do something like

print bcolors.WARNING + "Warning: No active frommets remain. Continue?"
+ bcolors.ENDC