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annotate Demo/xml/rss2html.py @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents a5d7b5277951
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 """
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2 A demo that reads in an RSS XML document and emits an HTML file containing
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3 a list of the individual items in the feed.
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4 """
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5
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6 import sys
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7 import codecs
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8
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9 from xml.sax import make_parser, handler
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10
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11 # --- Templates
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12
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13 top = """\
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14 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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15 <html>
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16 <head>
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17 <title>%s</title>
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18 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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19 </head>
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20
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21 <body>
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22 <h1>%s</h1>
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23 """
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24
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25 bottom = """
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26 </ul>
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27
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28 <hr>
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29 <address>
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30 Converted to HTML by rss2html.py.
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31 </address>
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32
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33 </body>
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34 </html>
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35 """
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36
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37 # --- The ContentHandler
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38
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39 class RSSHandler(handler.ContentHandler):
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40
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41 def __init__(self, out=sys.stdout):
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42 handler.ContentHandler.__init__(self)
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43 self._out = codecs.getwriter('utf-8')(out)
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44
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45 self._text = ""
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46 self._parent = None
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47 self._list_started = False
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48 self._title = None
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49 self._link = None
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50 self._descr = ""
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51
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52 # ContentHandler methods
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53
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54 def startElement(self, name, attrs):
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55 if name == "channel" or name == "image" or name == "item":
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56 self._parent = name
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57
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58 self._text = ""
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59
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60 def endElement(self, name):
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61 if self._parent == "channel":
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62 if name == "title":
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63 self._out.write(top % (self._text, self._text))
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64 elif name == "description":
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65 self._out.write("<p>%s</p>\n" % self._text)
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66
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67 elif self._parent == "item":
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68 if name == "title":
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69 self._title = self._text
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70 elif name == "link":
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71 self._link = self._text
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72 elif name == "description":
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73 self._descr = self._text
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74 elif name == "item":
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75 if not self._list_started:
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76 self._out.write("<ul>\n")
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77 self._list_started = True
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78
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79 self._out.write(' <li><a href="%s">%s</a> %s\n' %
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80 (self._link, self._title, self._descr))
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81
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82 self._title = None
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83 self._link = None
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84 self._descr = ""
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85
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86 if name == "rss":
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87 self._out.write(bottom)
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88
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89 def characters(self, content):
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90 self._text = self._text + content
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91
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92 # --- Main program
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93
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94 if __name__ == '__main__':
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95 parser = make_parser()
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96 parser.setContentHandler(RSSHandler())
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97 parser.parse(sys.argv[1])