random :: SystemRandom :: Class SystemRandom

[frames] | no frames]

Class SystemRandom

    object --+        
             |        
_random.Random --+    
                 |    
            Random --+
                     |
                    SystemRandom

Alternate random number generator using sources provided
by the operating system (such as /dev/urandom on Unix or
CryptGenRandom on Windows).

 Not available on all systems (see os.urandom() for details).

Instance Methods

_notimplemented(self, *args, **kwds)
Method should not be called for a system random number generator.

source code

_stub(self, *args, **kwds)
Stub method.

source code

getrandbits(k)
Generates a long int with k random bits.

source code

getstate(self, *args, **kwds)
Method should not be called for a system random number generator.

source code

jumpahead(self, *args, **kwds)
Stub method.

source code

random(self)
Get the next random number in the range [0.0, 1.0).

source code

seed(self, *args, **kwds)
Stub method.

source code

setstate(self, *args, **kwds)
Method should not be called for a system random number generator.

source code

Inherited from Random: __getstate__, __init__, __reduce__, __setstate__, betavariate, choice, expovariate, gammavariate, gauss, lognormvariate, normalvariate, paretovariate, randint, randrange, sample, shuffle, uniform, vonmisesvariate, weibullvariate

Inherited from Random (private): _randbelow

Inherited from _random.Random: __getattribute__, __new__

Inherited from object: __delattr__, __hash__, __reduce_ex__, __repr__, __setattr__, __str__

Class Variables

Inherited from Random: VERSION

Properties

Inherited from object: __class__

Method Details

_notimplemented(self, *args, **kwds)

Method should not be called for a system random number generator.

Returns:

None

_stub(self, *args, **kwds)

Stub method. Not used for a system random number generator.

Returns:

None

getrandbits(k)

Generates a long int with k random bits.

Returns:

Overrides: _random.Random.getrandbits

getstate(self, *args, **kwds)

Method should not be called for a system random number generator.

Returns:

None

Overrides: Random.getstate

jumpahead(self, *args, **kwds)

Stub method. Not used for a system random number generator.

Returns:

None

Overrides: _random.Random.jumpahead

random(self)

Get the next random number in the range [0.0, 1.0).

Returns:

x in the interval [0, 1).

Overrides: _random.Random.random

seed(self, *args, **kwds)

Stub method. Not used for a system random number generator.

Returns:

None

Overrides: Random.seed

setstate(self, *args, **kwds)

Method should not be called for a system random number generator.

Returns:

None

Overrides: Random.setstate