Find words that match a pattern I was looking for

findword.py

"""
Match a pattern, to find what can "s____e cake" be.
This is the hard way, and matching expressions rather than words
would be better, but brute force is brute.
"""
import re

# The English Open Word List file we need to consider
# http://dreamsteep.com/projects/the-english-open-word-list.html
fname = "S Words.csv"

# Input data into an list
f = open(fname, 'r')
data = f.readline()
f.close()
datalist = data.strip().split('\r') # to handle Mac style file ending

# Select matching words
word = re.compile("^s.{4}e$")
out = [line for line in datalist if word.match(line) is not None]

# Results output
print "matching words found (%d):" %(len(out))
print "=" * 20
nstep = 8 # number of words per line
printed = ""
for i in range(0, len(out)):
    printed += out[i]+"\t"
    if (i+1) % nstep == 0:
        printed += '\n'
print printed

gistfile1.txt

matching words found (209):
====================
sacque	saddle	sagene	saique	saithe	salade	salame	saline	
sallee	salpae	salute	samite	sample	sapele	sapple	sarape	
sarnie	sasine	satire	sative	saulie	savage	savate	savine	
scalae	scarce	scathe	scerne	scheme	schmoe	sclate	sclave	
sclere	sconce	scopae	scorse	scouse	scrape	scribe	scrike	
scrine	scrive	scrobe	scruze	sculle	scunge	scythe	searce	
sebate	secede	secure	sedate	sedile	seduce	seethe	seiche	
selkie	semble	sememe	semple	sempre	senate	senile	serape	
serene	serine	serrae	sesame	setose	settee	settle	setule	
severe	sewage	shavie	sheave	shelve	shikse	shrike	shrine	
shrive	shrove	sickie	sickle	siffle	silage	silane	silene	
silkie	silvae	simile	simple	single	sipple	sirene	sirree	
sizzle	sklate	sleave	sleaze	sledge	sleeve	sludge	sluice	
smeuse	smooge	smouse	smudge	snaste	snathe	sneeze	snooze	
snudge	sobole	socage	softie	solace	solute	sombre	somite	
sonsie	soogee	soogie	soothe	sopite	sorage	sortie	souple	
source	sozzle	spahee	sparge	sparse	spathe	spavie	specie	
spence	sperse	sphene	sphere	spicae	splice	spline	splore	
sponge	spouse	sprite	spruce	spunge	spurge	squame	square	
squire	stable	stacte	stance	stanze	staple	starve	statue	
steale	steane	stedde	steeve	stelae	steppe	sterve	stifle	
stigme	stimie	stodge	stogie	stooge	stoope	storge	strafe	
strake	strene	striae	stride	strife	strike	stripe	strive	
strobe	strode	stroke	strove	stymie	suable	subdue	subtle	
suckle	sudate	summae	sundae	supine	supple	surfie	sutile	
suttee	suttle	suture	svelte	swarve	swathe	swerve	swinge	
sylvae