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<!--

  Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 The SCons Foundation

  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  without limitation the rights to use, copy, modify, merge, publish,
  distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to
  the following conditions:

  The above copyright notice and this permission notice shall be included
  in all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

-->

  <!--

  <section>
  <title>Python Overview</title>

    <para>

    This section will provide a brief overview of
    the Python programming language.
    Skip this section if you are already familiar with Python
    (or you're really intent on diving into &SCons;
    and just picking up things as you go).

    </para>

    <para>

    Python has a lot of good
    documentation freely available on-line
    to help you get started.
    The standard tutorial is available at XXX.


    </para>

    <para>

    Python is very easy to pick up.

    </para>

    <para>

    Python variables must be assigned to before they can be referenced.

    </para>

    <para>

    Assignment is like most programming languages:

    x = 1 + 2
    z = 3 * x

    </para>

    <para>

    Function calls look like most language function calls:

    a = f(g)

    </para>

    <para>

    Define functions like so:

        def func(arg1, arg2):
            return arg1 * arg 2

    The number of parameters

    </para>

    <para>

    Strings can be enclosed in single quotes or double quotes,
    backslashes are used to escape characters,
    triple-quote syntax lets you include quotes and newlines,
    raw strings begin with 'r'.

    </para>

    <para>

    Lists are enclosed in square brackets,
    list items are separated by commas.
    List references use square brackets and integer index values,
    slice notation lets you select, delete or replace a range.

    </para>

    <para>

    Dictionaries (hashes) are enclosed in curly brackets,
    : separates keys from values,
    , separates items.
    Dictionary values are referenced using square brackets.

    </para>

    <para>

    Access class attributes (including methods) using a '.'.

    </para>

    <para>

    if: statements look like

    elif: statements look like

    else: statements look like

    </para>

    <para>

    for: statements look like

    while: statements look like

    break statements look like
    
    continue statements look like

    </para>

    <para>

    pass

    </para>

  </section>

  -->