def from_xml(cls, src):
"""Generate instance of subclass from an XML string."""
dom = xml.dom.minidom.parseString(src)
# Make sure all of the necessary pieces are there. Fail if any
# required tags are missing
xc = cls()
for tag_name, default_or_type in xc.required_tags():
elem = dom.getElementsByTagName(tag_name)
if not elem:
raise ValueError("Missing XML tag: " + tag_name)
tag_type = (default_or_type
if isinstance(default_or_type, type)
else type(default_or_type))
xc[tag_name] = tag_type(cls._get_text(elem[0].childNodes))
return xc
python类getElementsByTagName()的实例源码
def from_xml(cls, src):
"""Generate instance of subclass from an XML string."""
dom = xml.dom.minidom.parseString(src)
# Make sure all of the necessary pieces are there. Fail if any
# required tags are missing
xc = cls()
for tag_name, default_or_type in xc.required_tags():
elem = dom.getElementsByTagName(tag_name)
if not elem:
raise ValueError("Missing XML tag: " + tag_name)
tag_type = (default_or_type
if isinstance(default_or_type, type)
else type(default_or_type))
xc[tag_name] = tag_type(cls._get_text(elem[0].childNodes))
return xc
def from_xml(cls, src):
"""Generate instance of subclass from an XML string."""
dom = xml.dom.minidom.parseString(src)
# Make sure all of the necessary pieces are there. Fail if any
# required tags are missing
xc = cls()
for tag_name, default_or_type in xc.required_tags():
elem = dom.getElementsByTagName(tag_name)
if not elem:
raise ValueError("Missing XML tag: " + tag_name)
tag_type = (default_or_type
if isinstance(default_or_type, type)
else type(default_or_type))
xc[tag_name] = tag_type(cls._get_text(elem[0].childNodes))
return xc
def testGetElementsByTagName(self):
dom = parse(tstfile)
self.confirm(dom.getElementsByTagName("LI") == \
dom.documentElement.getElementsByTagName("LI"))
dom.unlink()
def test_toprettyxml_preserves_content_of_text_node(self):
# see issue #4147
for str in ('<B>A</B>', '<A><B>C</B></A>'):
dom = parseString(str)
dom2 = parseString(dom.toprettyxml())
self.assertEqual(
dom.getElementsByTagName('B')[0].childNodes[0].toxml(),
dom2.getElementsByTagName('B')[0].childNodes[0].toxml())
def testGetElementsByTagName(self):
dom = parse(tstfile)
self.confirm(dom.getElementsByTagName("LI") == \
dom.documentElement.getElementsByTagName("LI"))
dom.unlink()
def test_toprettyxml_preserves_content_of_text_node(self):
# see issue #4147
for str in ('<B>A</B>', '<A><B>C</B></A>'):
dom = parseString(str)
dom2 = parseString(dom.toprettyxml())
self.assertEqual(
dom.getElementsByTagName('B')[0].childNodes[0].toxml(),
dom2.getElementsByTagName('B')[0].childNodes[0].toxml())
def testGetElementsByTagName(self):
dom = parse(tstfile)
self.confirm(dom.getElementsByTagName("LI") == \
dom.documentElement.getElementsByTagName("LI"))
dom.unlink()
def test_toprettyxml_preserves_content_of_text_node(self):
# see issue #4147
for str in ('<B>A</B>', '<A><B>C</B></A>'):
dom = parseString(str)
dom2 = parseString(dom.toprettyxml())
self.assertEqual(
dom.getElementsByTagName('B')[0].childNodes[0].toxml(),
dom2.getElementsByTagName('B')[0].childNodes[0].toxml())
def testGetElementsByTagName(self):
dom = parse(tstfile)
self.confirm(dom.getElementsByTagName("LI") == \
dom.documentElement.getElementsByTagName("LI"))
dom.unlink()
def test_toprettyxml_preserves_content_of_text_node(self):
# see issue #4147
for str in ('<B>A</B>', '<A><B>C</B></A>'):
dom = parseString(str)
dom2 = parseString(dom.toprettyxml())
self.assertEqual(
dom.getElementsByTagName('B')[0].childNodes[0].toxml(),
dom2.getElementsByTagName('B')[0].childNodes[0].toxml())
def testGetElementsByTagName(self):
dom = parse(tstfile)
self.confirm(dom.getElementsByTagName("LI") == \
dom.documentElement.getElementsByTagName("LI"))
dom.unlink()
def test_toprettyxml_preserves_content_of_text_node(self):
# see issue #4147
for str in ('<B>A</B>', '<A><B>C</B></A>'):
dom = parseString(str)
dom2 = parseString(dom.toprettyxml())
self.assertEqual(
dom.getElementsByTagName('B')[0].childNodes[0].toxml(),
dom2.getElementsByTagName('B')[0].childNodes[0].toxml())
