def build_index(index):
p = Pipeline(index)
alphabat = "abcdefghijklmnopqrstuvwxyz"
n = 0
l = []
while n < len(alphabat):
item = p.read()
if not item:
return
if item[0][0] == alphabat[n]:
print item
l.append((alphabat[n], p.file.tell() - 32))
n += 1
f = open("iindex", "w")
for i in l:
print i
f.write("%s %s\n" % (i[0], i[1]))
f.close()
