capybara/virtualenv/lib/python2.7/site-packages/lxml/html/__init__.py
def html_to_xhtml(html):
    """Convert all tags in an HTML tree to XHTML by moving them to the
    XHTML namespace.
    """
    try:
        html = html.getroot()
    except AttributeError:
        pass
    prefix = "{%s}" % XHTML_NAMESPACE
    for el in html.iter(etree.Element):
        tag = el.tag
        if tag[0] != '{':
            el.tag = prefix + tag
def html_to_xhtml(html):
    try:
        html = html.getroot()
    except AttributeError:
        pass
    prefix = "{%s}" % XHTML_NAMESPACE
    for el in html.iter(etree.Element):
        tag = el.tag
        if tag[0] != '{':
            el.tag = prefix + tag
def html_to_xhtml ( html ) : try : html = html . getroot ( ) except AttributeError : pass prefix = "{%s}" % XHTML_NAMESPACE for el in html . iter ( etree . Element ) : tag = el . tag if tag [ 0 ] != '{' : el . tag = prefix + tag
Convert all tags in an HTML tree to XHTML by moving them to the
    XHTML namespace.
Convert all tags in an HTML tree to XHTML by moving them to the XHTML namespace .