diff options
Diffstat (limited to 'Lib/random.py')
-rw-r--r-- | Lib/random.py | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Lib/random.py b/Lib/random.py index 592e4b8..4ff65ab 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -91,13 +91,17 @@ class Random(_random.Random): self.seed(x) self.gauss_next = None - def seed(self, a=None): + def seed(self, a=None, version=2): """Initialize internal state from hashable object. None or no argument seeds from current time or from an operating system specific randomness source if available. - If a is not None or an int, hash(a) is used instead. + For version 2 (the default), all of the bits are used if a is a str, + bytes, or bytearray. For version 1, the hash() of a is used instead. + + If a is an int, all bits are used. + """ if a is None: @@ -107,6 +111,11 @@ class Random(_random.Random): import time a = int(time.time() * 256) # use fractional seconds + if version == 2 and isinstance(a, (str, bytes, bytearray)): + if isinstance(a, str): + a = a.encode("utf8") + a = int(_hexlify(a), 16) + super().seed(a) self.gauss_next = None |