Regexes for dumb substring searches aren't ''that'' terrible.

This test is really dumb though, but maybe provides meaningful data.

{{{#!python
import re
import time


d = '/usr/share/dict/british-english'
words = open(d,'r').readlines()

test_string = 'e'
test_regex = re.compile(test_string)


stamp_start = time.time()

print "Simple substring test"
for word in words:
        _ = test_string in word

stamp_mid = time.time()

print "Regex test"
for word in words:
        _ = test_regex.search(word)

stamp_end = time.time()


print "Substring time was %s" % (stamp_mid - stamp_start,)
print "Regex time was     %s" % (stamp_end - stamp_mid,)
}}}


And the output, is fairly consistent. About twice as fast to do it simply.
{{{
Simple substring test
Regex test
Substring time was 0.0137870311737
Regex time was     0.0306131839752
}}}