Source Code for Module RDRandom

 1  # $Id: RDRandom.py 1528 2010-09-26 17:04:37Z glandrum $ 
 2  # 
 3  #  Copyright (C) 2003-2006  Greg Landrum and Rational Discovery LLC 
 4  # 
 5  #   @@ All Rights Reserved @@ 
 6  #  This file is part of the RDKit. 
 7  #  The contents are covered by the terms of the BSD license 
 8  #  which is included in the file license.txt, found at the root 
 9  #  of the RDKit source tree. 
10  # 
11  """ making random numbers consistent so we get good regressions 
12   
13  """ 
14   
15  import sys 
16   
17  import random as _random 
18  if sys.hexversion >= 0x20303f0: 
19    _randGen = _random.WichmannHill() 
20    random = _randGen.random 
21    randrange = _randGen.randrange 
22 -  def seed(val): 
23      global _randGen,random,randrange 
24      _randGen = _random.WichmannHill() 
25      _randGen.whseed(val) 
26      random = _randGen.random 
27      randrange = _randGen.randrange 
28  else: 
29    random = _random.random 
30    randrange = _random.randrange 
31    seed = _random.whseed 
32