gistfile1.diff

diff --git a/d20tools/postparser.py b/d20tools/postparser.py
index f3af4fe..638c529 100644
--- a/d20tools/postparser.py
+++ b/d20tools/postparser.py
@@ -3,10 +3,16 @@ import re, random
 RX_DICE = re.compile(r'[^>](?P<dname>(?P<cnt>\d+)d(?P<dice>\d+)(?P<mod>[-+]\d+|))')
 RX_DIRECT = re.compile(r'^((\w+), *)+:') # FIXME
 
+RDEV = None
+
 def dice_roll(x, y, z):
+    global RDEV
+    if not RDEV:
+        RDEV = open('/dev/random')
     s = 0
     for i in range(x):
-        s += random.randint(1, y)
+        v = (ord(RDEV.read(1)) % y) + 1
+        s += v
     s += z
     return s