Imported changes from development branch

[cipher-training.git] / norms.py

diff --git a/norms.py b/norms.py
index 66452940c376658e446bb704c7198ee1ace2be22..eb436c3b8163141a3ada1f1f02f8be741d6f47fb 100644 (file)
--- a/norms.py
+++ b/norms.py
@@ -178,7 +178,7 @@ def cosine_similarity(frequencies1, frequencies2):
     for k in frequencies1:
         numerator += frequencies1[k] * frequencies2[k]
         length1 += frequencies1[k]**2
-    for k in frequencies2.keys():
+    for k in frequencies2:
         length2 += frequencies2[k]**2
     return numerator / (length1 ** 0.5 * length2 ** 0.5)