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Name: [011] John Montgomery
Member: 126 months
Authored: 21 videos
Description: I'm a C/C++, Java and Python programmer living in Hove, UK. ...

Writing a Python CGI Wiki - viewing pages [ID:663] (4/6)

in series: Introduction to Python web-programming: CGI

(Showmedo is undergoing major changes. To report any problems viewing the videos please email us and include browser and OS specifics. Cheers - Kyran.)

In this ShowMeDo I start creating a simple wiki that stores it's "wiki text" on the file system. I demonstrate how you can use basic parameters to choose which page to view.

At this point we have the basic code to start writing a real wiki. The next episodes will demonstrate how to use forms to let users create and edit wiki pages. We will also cover how to use regular expressions to identify "wiki words" and have them automatically turned into links - just like a real wiki.


import cgi
import cgitb; cgitb.enable()
import os
import urllib


def page_file_name(page):
    file_name="%s.txt" % urllib.quote_plus(page)
    return os.path.join(CONTENTS_DIR,file_name)

def page_contents(page):
    if not os.path.exists(file_name):
        return None
    return file(file_name).read()

def page_header(title):
    print "Content-Type: text/html"
    print "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' ''>"
    print "<html xmlns=''>"
    print "<head>"
    print "<title>%s</title>" % cgi.escape(title)
    print "</head>"
    print "<body>"

def page_footer():
    print "</body>"
    print "</html>"

def view_page(page,params):
    if contents is None:
		contents='page not found'
    #    edit_page(page,params)
    #    return
    print "<h1>%s</h1>" % cgi.escape(page)
    print "<div class='contents'>"
    print cgi.escape(contents)
    print "</div>"

def execute(params):


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I can't wait to get my own custom python wiki going. This is awesome.

Wow, to think we're constructing the framework that Wikipedia is based on... This is pretty cool.

Video published, thanks for contributing to ShowMeDo

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Kudos and Thanks for John

The 'Hello World' Applet - Part 1

Thanks very helpful!


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