<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<link rel="STYLESHEET" href="lib.css" type='text/css' />
<link rel="SHORTCUT ICON" href="../icons/pyfav.gif" />
<link rel='start' href='../index.html' title='Python Documentation Index' />
<link rel="first" href="lib.html" title='Python Library Reference' />
<link rel='contents' href='contents.html' title="Contents" />
<link rel='index' href='genindex.html' title='Index' />
<link rel='last' href='about.html' title='About this document...' />
<link rel='help' href='about.html' title='About this document...' />
<LINK rel="prev" href="optparse-error-handling.html">
<LINK rel="parent" href="optparse-basic-usage.html">
<LINK rel="next" href="optparse-advanced-usage.html">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name='aesop' content='information' />
<META name="description" content="Putting it all together">
<META name="keywords" content="lib">
<META name="resource-type" content="document">
<META name="distribution" content="global">
<title>6.20.2.7 Putting it all together</title>
</head>
<body>
<DIV CLASS="navigation">
<div id='top-navigation-panel'>
<table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td class='online-navigation'><a rel="prev" title="6.20.2.6 Error-handling"
href="optparse-error-handling.html"><img src='../icons/previous.png'
border='0' height='32' alt='Previous Page' width='32' /></A></td>
<td class='online-navigation'><a rel="parent" title="6.20.2 Basic Usage"
href="optparse-basic-usage.html"><img src='../icons/up.png'
border='0' height='32' alt='Up One Level' width='32' /></A></td>
<td class='online-navigation'><a rel="next" title="6.20.3 Advanced Usage"
href="optparse-advanced-usage.html"><img src='../icons/next.png'
border='0' height='32' alt='Next Page' width='32' /></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td class='online-navigation'><a rel="contents" title="Table of Contents"
href="contents.html"><img src='../icons/contents.png'
border='0' height='32' alt='Contents' width='32' /></A></td>
<td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png'
border='0' height='32' alt='Module Index' width='32' /></a></td>
<td class='online-navigation'><a rel="index" title="Index"
href="genindex.html"><img src='../icons/index.png'
border='0' height='32' alt='Index' width='32' /></A></td>
</tr></table>
<div class='online-navigation'>
<b class="navlabel">Previous:</b>
<a class="sectref" rel="prev" href="optparse-error-handling.html">6.20.2.6 Error-handling</A>
<b class="navlabel">Up:</b>
<a class="sectref" rel="parent" href="optparse-basic-usage.html">6.20.2 Basic Usage</A>
<b class="navlabel">Next:</b>
<a class="sectref" rel="next" href="optparse-advanced-usage.html">6.20.3 Advanced Usage</A>
</div>
<hr /></div>
</DIV>
<!--End of Navigation Panel-->
<H3><A NAME="SECTION0082027000000000000000"><!--x--></A><A NAME="optparse-basic-summary"><!--z--></A>
<BR>
6.20.2.7 Putting it all together
</H3>
<P>
Here's what <tt class="module">optparse</tt>-based scripts typically look like:
<P>
<div class="verbatim"><pre>
from optparse import OptionParser
[...]
def main():
usage = "usage: \%prog [-f] [-v] [-q] firstarg secondarg"
parser = OptionParser(usage)
parser.add_option("-f", "--file", type="string", dest="filename",
help="read data from FILENAME")
parser.add_option("-v", "--verbose",
action="store_true", dest="verbose")
parser.add_option("-q", "--quiet",
action="store_false", dest="verbose")
(options, args) = parser.parse_args()
if len(args) != 1:
parser.error("incorrect number of arguments")
if options.verbose:
print "reading \%s..." \% options.filename
[... go to work ...]
if __name__ == "__main__":
main()
</pre></div>
<P>
<DIV CLASS="navigation">
<div class='online-navigation'><hr />
<table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td class='online-navigation'><a rel="prev" title="6.20.2.6 Error-handling"
rel="prev" title="6.20.2.6 Error-handling"
href="optparse-error-handling.html"><img src='../icons/previous.png'
border='0' height='32' alt='Previous Page' width='32' /></A></td>
<td class='online-navigation'><a rel="parent" title="6.20.2 Basic Usage"
rel="parent" title="6.20.2 Basic Usage"
href="optparse-basic-usage.html"><img src='../icons/up.png'
border='0' height='32' alt='Up One Level' width='32' /></A></td>
<td class='online-navigation'><a rel="next" title="6.20.3 Advanced Usage"
rel="next" title="6.20.3 Advanced Usage"
href="optparse-advanced-usage.html"><img src='../icons/next.png'
border='0' height='32' alt='Next Page' width='32' /></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td class='online-navigation'><a rel="contents" title="Table of Contents"
rel="contents" title="Table of Contents"
href="contents.html"><img src='../icons/contents.png'
border='0' height='32' alt='Contents' width='32' /></A></td>
<td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png'
border='0' height='32' alt='Module Index' width='32' /></a></td>
<td class='online-navigation'><a rel="index" title="Index"
rel="index" title="Index"
href="genindex.html"><img src='../icons/index.png'
border='0' height='32' alt='Index' width='32' /></A></td>
</tr></table>
<div class='online-navigation'>
<b class="navlabel">Previous:</b>
<a class="sectref" rel="prev" href="optparse-error-handling.html">6.20.2.6 Error-handling</A>
<b class="navlabel">Up:</b>
<a class="sectref" rel="parent" href="optparse-basic-usage.html">6.20.2 Basic Usage</A>
<b class="navlabel">Next:</b>
<a class="sectref" rel="next" href="optparse-advanced-usage.html">6.20.3 Advanced Usage</A>
</div>
</div>
<hr />
<span class="release-info">Release 2.3.4, documentation updated on May 20, 2004.</span>
</DIV>
<!--End of Navigation Panel-->
<ADDRESS>
See <i><a href="about.html">About this document...</a></i> for information on suggesting changes.
</ADDRESS>
</BODY>
</HTML>
