On 30 Nov 2005, at 16:27, Fredrik Lundh wrote: > Tony McDonald wrote: > >> I did have this, >> >> from elementtree.ElementTree import XML, ElementTree, Element, >> SubElement, dump >> >> and went to this; >> >> from cElementTree import XML, ElementTree, Element, SubElement, dump >> >> Which imports fine, but there's something amiss because; >> root = ElementTree(file=filename) >> ... >> elements = root.getiterator() >> print "LEN", len(elements) >> >> which gave 634 elements using python ElementTree but gives len() of >> unsized object when using the eElementTree version, and there does >> seem to be something amiss ... > > the getiterator method is defined to return "something that you can > iterate over", which is not necessarily a sequence object. > > in ElementTree, it happens to be a list (at least in the 1.2 > series), but > cElementTree returns a generator instead. > > no matter what version you're using, this > > for elem in root.getiterator(): > ... > > is guaranteed to work.
and indeed it does. Rapidly! > if you want a list, you can always use the list > constructor. e.g. > > print "LEN", len(list(root.getiterator())) > > </F> > Many thanks Fredrik, this thread has helped me out no end! cheers Tone -- Dr Tony McDonald, Asst Director, FMSC. 0191 246 4543 School of Medical Education Development Project Manager, FDTL-4 ePortfolios http://www.eportfolios.ac.uk/ _______________________________________________ XML-SIG maillist - XML-SIG@python.org http://mail.python.org/mailman/listinfo/xml-sig
