genshi.path

Package genshi :: Module path |

# Module path

Basic support for evaluating XPath expressions against streams.

    >>> from genshi.input import XML
    >>> doc = XML('''<doc>
    ...  <items count="4">
    ...       <item status="new">
    ...         <summary>Foo</summary>
    ...       </item>
    ...       <item status="closed">
    ...         <summary>Bar</summary>
    ...       </item>
    ...       <item status="closed" resolution="invalid">
    ...         <summary>Baz</summary>
    ...       </item>
    ...       <item status="closed" resolution="fixed">
    ...         <summary>Waz</summary>
    ...       </item>
    ...   </items>
    ... </doc>''')
    >>> print(doc.select('items/item[@status="closed" and '
    ...     '(@resolution="invalid" or not(@resolution))]/summary/text()'))
    BarBaz

Because the XPath engine operates on markup streams (as opposed to tree structures), it only implements a subset of the full XPath 1.0 language.

Classes
| Path Implements basic XPath support on streams.
| PathSyntaxError Exception raised when an XPath expression is syntactically incorrect.