Tweaked reversing in part 6

[cipher-tools.git] / support / lettercount.py

diff --git a/support/lettercount.py b/support/lettercount.py
index 4a7082d1068669762d1c8526c761382d07ed6182..fe1ea08b655d6ff6051520e18486acf5dceb6e95 100644 (file)
--- a/support/lettercount.py
+++ b/support/lettercount.py
@@ -1,16 +1,13 @@
 import collections
 import string
-
-def sanitise(text):
-    return [l.lower() for l in text if l in string.ascii_letters]
+from utilities import sanitise
 
 corpora = ['shakespeare.txt', 'sherlock-holmes.txt', 'war-and-peace.txt']
-counts = collections.defaultdict(int)
+counts = collections.Counter()
 
 for corpus in corpora:
     text = sanitise(open(corpus, 'r').read())
-    for letter in text:
-        counts[letter] += 1
+    counts.update(text)
 
 sorted_letters = sorted(counts, key=counts.get, reverse=True)