lxml：通過XSLT將XML轉換爲HTML並獲取HtmlElements

Question

我有作爲XML文件來的數據。我也提供了一個XSLT來將XML轉換爲HTML。我可以使用lxml來執行轉換，但是，我想在轉換後更改一些HTML標記。如何將這個新的etree轉換爲HtmlElements，以便我可以專門使用某些方法，如.cssselect（）等。

Answer 1

>>> import lxml.etree 
>>> import lxml.html 
>>> 
>>> xmlstring = '''\ 
... <?xml version='1.0' encoding='ASCII'?> 
... <root><a class="here">link1</a><a class="there">link2</a></root> 
... ''' 
>>> root = lxml.etree.fromstring(xmlstring) 
>>> root.cssselect('a.here') 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
AttributeError: 'lxml.etree._Element' object has no attribute 'cssselect' 

lxml.etree.tostring(root) - >lxml.html.fromstring(..)

>>> root = lxml.html.fromstring(lxml.etree.tostring(root)) 
>>> root.cssselect('a.here') 
[<Element a at 0x2989308>] 

獲取XML輸出：

>>> print lxml.etree.tostring(root, xml_declaration=True) 
<?xml version='1.0' encoding='ASCII'?> 
<root><a class="here">link1</a><a class="there">link2</a></root>