thanx stefan ur approach worked. Stefan Behnel wrote: > Kirt wrote: > > How do i append characters to a string? > > I think the normal approach is to store an empty string (or list) in an > attribute in startElement(), append to it in characters() and use the result > in endElement(). > > def startElement(self, ...): > self.chars = '' > def characters(self, s): > self.chars += s > def endElement(self, ...): > value = self.chars > > Or use a list and do this: > > def endElement(self, ...): > value = ''.join(self.char_list) > > Maybe you should consider switching to iterparse() of ElementTree or lxml. > Should be a bit easier to use than SAX ... > > http://effbot.org/zone/element-iterparse.htm > http://codespeak.net/svn/lxml/trunk/doc/api.txt > > Stefan > > > > Stefan Behnel wrote: > >> Kirt wrote: > >>> i have walked a directory and have written the foll xml document. > >>> one of the folder had "&" character so i replaced it by "&" > >>> #------------------test1.xml > >>> <Directory> > >>> <dirname>C:\Documents and Settings\Administrator\Desktop\1\bye > >>> w&y </dirname> > >>> <file> > >>> <name>def.txt</name> > >>> <time>200607130417</time> > >>> </file> > >>> </Directory> > >>> <Directory> > >>> <dirname>C:\Documents and Settings\Administrator\Desktop\1\hii > >>> wx</dirname> > >>> <file> > >>> <name>abc.txt</name> > >>> <time>200607130415</time> > >>> </file> > >>> </Directory > >>> > >>> now in my python code i want to parse this doc and print the directory > >>> name. > >>> ###----------handler------------filename---handler.py > >>> from xml.sax.handler import ContentHandler > >>> class oldHandler(ContentHandler): > >>> def __init__(self): > >>> self.dn = 0 > >>> def startElement(self, name, attrs): > >>> if name=='dirname': > >>> self.dn=1 > >>> > >>> def characters(self,str): > >>> if self.dn: > >>> print str > >> > >> The problem is here. "print" adds a newline. Don't use print, just append > >> the > >> characters (to a string or list) until the endElement callback is called. > >> > >> > >>> def endElement(self, name): > >>> if name == 'dirname': > >>> self.dn=0 > >>> > >>> > >>> #--------------------------------------------------------------------- > >>> #main code--- fname----art.py > >>> import sys > >>> from xml.sax import make_parser > >>> from handlers import oldHandler > >>> > >>> ch = oldHandler() > >>> saxparser = make_parser() > >>> > >>> saxparser.setContentHandler(ch) > >>> saxparser.parse(sys.argv[1]) > >>> #----------------------------------------------------------------------------- > >>> i run the code as: $python art.py test1.xml > >>> > >>> i am getting output as: > >>> > >>> C:\Documents and Settings\Administrator\Desktop\1\bye w > >>> & > >>> y > >>> C:\Documents and Settings\Administrator\Desktop\1\hii wx > >>> > >>> where as i need an output which should look like this. > >>> C:\Documents and Settings\Administrator\Desktop\1\bye w&y > >>> > >>> C:\Documents and Settings\Administrator\Desktop\1\hii wx > >>> > >>> Can someone tell me the solution for this. > >>> > >
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