Fix regexp for Python 3.7

kirsle · kirsle · commit c223c7186f07 · 2017-04-30T14:57:31.000-07:00
diff --git a/rivescript/brain.py b/rivescript/brain.py
@@ -461,7 +461,7 @@ def reply_regexp(self, user, regexp):
                 '(?:' + pipes + r'|(?:\\s|\\b))', regexp)
 
         # _ wildcards can't match numbers!
-        regexp = re.sub(RE.literal_w, r'[^\s\d]', regexp)
+        regexp = re.sub(RE.literal_w, '[^\s\d]', regexp)
 
         # Filter in arrays.
         arrays = re.findall(RE.array, regexp)
