/usr/lib/python3/dist-packages/pyutilib/misc/xmltodict.py is in python3-pyutilib 5.3.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2012 Martin Blech and individual contributors.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""
from xml.parsers import expat
from xml.sax.saxutils import XMLGenerator
from xml.sax.xmlreader import AttributesImpl
try: # pragma no cover
from cStringIO import StringIO
except ImportError: # pragma no cover
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
try: # pragma no cover
OrderedDict = dict
#from collections import OrderedDict
except ImportError: # pragma no cover
from odict import OrderedDict
try: # pragma no cover
_basestring = basestring
except NameError: # pragma no cover
_basestring = str
try: # pragma no cover
_unicode = unicode
except NameError: # pragma no cover
_unicode = str
from pyutilib.misc.pyyaml_util import yaml_eval
__author__ = 'Martin Blech'
__version__ = '0.2'
__license__ = 'MIT'
class ParsingInterrupted(Exception): pass
class _DictSAXHandler:
def __init__(self,
item_depth=0,
item_callback=lambda *args: True,
xml_attribs=True,
attr_prefix='@',
cdata_key='#text',
force_cdata=False,
cdata_separator=''):
self.path = []
self.stack = []
self.data = None
self.item = None
self.item_depth = item_depth
self.xml_attribs = xml_attribs
self.item_callback = item_callback
self.attr_prefix = attr_prefix;
self.cdata_key = cdata_key
self.force_cdata = force_cdata
self.cdata_separator = cdata_separator
def startElement(self, name, attrs):
self.path.append((name, attrs or None))
if len(self.path) > self.item_depth:
self.stack.append((self.item, self.data))
attrs = OrderedDict((self.attr_prefix+key, yaml_eval(value))
for (key, value) in attrs.items())
self.item = self.xml_attribs and attrs or None
self.data = None
def endElement(self, name):
if len(self.path) == self.item_depth:
item = self.item
if item is None:
item = self.data
should_continue = self.item_callback(self.path, item)
if not should_continue:
raise ParsingInterrupted()
if len(self.stack):
item, data = self.item, self.data
self.item, self.data = self.stack.pop()
if data and self.force_cdata and item is None:
item = OrderedDict()
if item is not None:
if data:
item[self.cdata_key] = data
self.push_data(name, item)
else:
self.push_data(name, data)
else:
self.item = self.data = None
self.path.pop()
def characters(self, data):
if data.strip():
if not self.data:
self.data = data
else:
self.data += self.cdata_separator + data
def push_data(self, key, data):
if self.item is None:
self.item = OrderedDict()
try:
value = self.item[key]
if isinstance(value, list):
value.append(data)
else:
self.item[key] = [value, yaml_eval(data)]
except KeyError:
self.item[key] = yaml_eval(data)
def parse(xml_input, *args, **kwargs):
"""Parse the given XML input and convert it into a dictionary.
`xml_input` can either be a `string` or a file-like object.
If `xml_attribs` is `True`, element attributes are put in the dictionary
among regular child elements, using `@` as a prefix to avoid collisions. If
set to `False`, they are just ignored.
Simple example::
>>> doc = xmltodict.parse(\"\"\"
... <a prop="x">
... <b>1</b>
... <b>2</b>
... </a>
... \"\"\")
>>> doc['a']['@prop']
u'x'
>>> doc['a']['b']
[u'1', u'2']
If `item_depth` is `0`, the function returns a dictionary for the root
element (default behavior). Otherwise, it calls `item_callback` every time
an item at the specified depth is found and returns `None` in the end
(streaming mode).
The callback function receives two parameters: the `path` from the document
root to the item (name-attribs pairs), and the `item` (dict). If the
callback's return value is false-ish, parsing will be stopped with the
:class:`ParsingInterrupted` exception.
Streaming example::
>>> def handle(path, item):
... print 'path:%s item:%s' % (path, item)
... return True
...
>>> xmltodict.parse(\"\"\"
... <a prop="x">
... <b>1</b>
... <b>2</b>
... </a>\"\"\", item_depth=2, item_callback=handle)
path:[(u'a', {u'prop': u'x'}), (u'b', None)] item:1
path:[(u'a', {u'prop': u'x'}), (u'b', None)] item:2
"""
handler = _DictSAXHandler(*args, **kwargs)
parser = expat.ParserCreate()
parser.StartElementHandler = handler.startElement
parser.EndElementHandler = handler.endElement
parser.CharacterDataHandler = handler.characters
if hasattr(xml_input, 'read'):
parser.ParseFile(xml_input)
else:
parser.Parse(xml_input, True)
return handler.item
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