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Random Number Generation
************************
.. py:module:: random
This module is based upon the ``random`` module in the Python standard library.
It contains functions for generating random behaviour.
To access this module you need to::
import random
We assume you have done this for the examples below.
Functions
=========
.. py:function:: getrandbits(n)
Returns an integer with ``n`` random bits.
.. warning::
Because the underlying generator function returns at most 30 bits, ``n``
may only be a value between 1-30 (inclusive).
.. py:function:: seed(n)
Initialize the random number generator with a known integer ``n``. This
will give you reproducibly deterministic randomness from a given starting
state (``n``).
.. py:function:: randint(a, b)
Return a random integer ``N`` such that ``a <= N <= b``. Alias for
``randrange(a, b+1)``.
.. py:function:: randrange(stop)
Return a randomly selected integer between zero and up to (but not
including) ``stop``.
.. py:function:: randrange(start, stop)
Return a randomly selected integer from ``range(start, stop)``.
.. py:function:: randrange(start, stop, step)
Return a randomly selected element from ``range(start, stop, step)``.
.. py:function:: choice(seq)
Return a random element from the non-empty sequence ``seq``. If ``seq`` is
empty, raises ``IndexError``.
.. py:function:: random()
Return the next random floating point number in the range [0.0, 1.0)
.. py:function:: uniform(a, b)
Return a random floating point number ``N`` such that ``a <= N <= b``
for ``a <= b`` and ``b <= N <= a`` for ``b < a``.
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