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<H2>
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5.3.1 The Random Number Generator Interface
</H2>
<P>
The <i class="dfn">Random Number Generator</i> interface describes the methods
which are available for all random number generators. This will be
enhanced in future releases of Python.
<P>
In this release of Python, the modules <tt class='module'><a href="module-random.html" tppabs="http://www.python.org/doc/current/lib/module-random.html">random</a></tt>,
<tt class='module'><a href="module-whrandom.html" tppabs="http://www.python.org/doc/current/lib/module-whrandom.html">whrandom</a></tt>, and instances of the
<tt class="class">whrandom.whrandom</tt> class all conform to this interface.
<P>
<dl><dt><b><a name='l2h-741'><tt class='function'>choice</tt></a></b> (<var>seq</var>)
<dd>
Chooses a random element from the non-empty sequence <var>seq</var> and
returns it.
</dl>
<P>
<dl><dt><b><a name='l2h-742'><tt class='function'>randint</tt></a></b> (<var>a, b</var>)
<dd>
<b>Deprecated since release 2.0.</b>
Use <tt class="function">randrange()</tt> instead.<p>
Returns a random integer <var>N</var> such that
<code><var>a</var> <= <var>N</var> <= <var>b</var></code>.
</dl>
<P>
<dl><dt><b><a name='l2h-743'><tt class='function'>random</tt></a></b> ()
<dd>
Returns the next random floating point number in the range [0.0
... 1.0).
</dl>
<P>
<dl><dt><b><a name='l2h-744'><tt class='function'>randrange</tt></a></b> (<big>[</big><var>start,</var><big>]</big><var> stop</var><big>[</big><var>, step</var><big>]</big>)
<dd>
Return a randomly selected element from <code>range(<var>start</var>,
<var>stop</var>, <var>step</var>)</code>. This is equivalent to
<code>choice(range(<var>start</var>, <var>stop</var>, <var>step</var>))</code>.
New in version 1.5.2.
</dl>
<P>
<dl><dt><b><a name='l2h-745'><tt class='function'>uniform</tt></a></b> (<var>a, b</var>)
<dd>
Returns a random real number <var>N</var> such that
<code><var>a</var> <= <var>N</var> < <var>b</var></code>.
</dl>
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