(Implementation) The pre module, used in Example 13-8, is a low-level implementation module for
the 1.5.2 re
module. There’s usually no need to use this module directly (and code
using it may stop working in future releases).
Example 13-8. Using the pre Module
File: pre-example-1.py
import pre
p = pre.compile("[Python]+")
print p.findall("Python is not that bad")
['Python', 'not', 'th', 't']