shutil.py

1 files changed, 26 insertions, 2 deletions

diff --git a/modules/language/python/module/random.py b/modules/language/python/module/random.py
index 31783cc..4c24977 100644
--- a/modules/language/python/module/random.py
+++ b/modules/language/python/module/random.py
@@ -69,7 +69,7 @@ RECIP_BPF = 2**-BPF
 
 import _random
 
-class Random(_random.Random):
+class Random (_random.Random):
     """Random number generator base class used by bound module functions.
 
     Used to instantiate instances of Random to get generators that don't
@@ -703,9 +703,9 @@ class SystemRandom(Random):
 
 ## -------------------- test program --------------------
 
-import time
 
 def _test_generator(n, func, args):
+    import time    
     print(n, 'times', func.__name__)
     total = 0.0
     sqsum = 0.0
@@ -727,9 +727,33 @@ def _test_generator(n, func, args):
     print('avg %g, stddev %g, min %g, max %g\n' % \
               (avg, stddev, smallest, largest))
 
+def _test_generator0(n, func):
+    import time    
+    print(n, 'times', func.__name__)
+    total = 0.0
+    sqsum = 0.0
+    smallest = 1e10
+    largest = -1e10
+    t0 = time.time()
+    for i in range(n):
+        x = func()
+        total += x
+        sqsum = sqsum + x*x
+        smallest = min(x, smallest)
+        largest = max(x, largest)
+
+    t1 = time.time()
+    print(round(t1-t0, 3), 'sec,', end=' ')
+    avg = total/n
+    stddev = _sqrt(sqsum/n - avg*avg)
+
+    print('avg %g, stddev %g, min %g, max %g\n' % \
+              (avg, stddev, smallest, largest))
+
 
 def _test(N=2000):
     _test_generator(N, random, ())
+    _test_generator0(N, random)
     _test_generator(N, normalvariate, (0.0, 1.0))
     _test_generator(N, lognormvariate, (0.0, 1.0))
     _test_generator(N, vonmisesvariate, (0.0, 1.0))