pyxb.exceptions_.ElementChangeError: Value 2 for element incompatible with fixed content

[emezeta]

PyXB v1.2.5 Classes are generated without errors or warnings with

    pyxbgen -u EnvioCFE_entreEmpresas.xsd -m myclass

The problem occurs when parsing a valid xml data file.

import myclass
with open("./xml/Sob_111111111111_20161207_99999.xml") as f:
    xml_str = f.read()

xml_doc = myclass.CreateFromDocument(xml_str)

Traceback (most recent call last):
  File "pi.py", line 6, in <module>
    xml_doc = eceelib.CreateFromDocument(xml_str)
  File "/home/pyefuy/devel/XSDs_FE_1_36/myclass.py", line 71, in CreateFromDocument
    saxer.parse(io.BytesIO(xmld))
  File "/usr/lib/python2.7/xml/sax/expatreader.py", line 107, in parse
    xmlreader.IncrementalParser.parse(self, source)
  File "/usr/lib/python2.7/xml/sax/xmlreader.py", line 123, in parse
    self.feed(buffer)
  File "/usr/lib/python2.7/xml/sax/expatreader.py", line 210, in feed
    self._parser.Parse(data, isFinal)
  File "/usr/lib/python2.7/xml/sax/expatreader.py", line 351, in end_element_ns
    self._cont_handler.endElementNS(pair, None)
  File "/usr/local/lib/python2.7/dist-packages/pyxb/binding/saxer.py", line 388, in endElementNS
    binding_object = this_state.endBindingElement()
  File "/usr/local/lib/python2.7/dist-packages/pyxb/binding/saxer.py", line 226, in endBindingElement
    self.__constructElement(self.__delayedConstructor, self.__attributes, args)
  File "/usr/local/lib/python2.7/dist-packages/pyxb/binding/saxer.py", line 116, in __constructElement
    self.__bindingInstance = new_object_factory(*content, **kw)
  File "/usr/local/lib/python2.7/dist-packages/pyxb/binding/basis.py", line 1613, in __call__
    args = [ self.compatibleValue(args[0], **kw) ]
  File "/usr/local/lib/python2.7/dist-packages/pyxb/binding/basis.py", line 1635, in compatibleValue
    raise pyxb.ElementChangeError(self, value)
pyxb.exceptions_.ElementChangeError: 
    Value 2 for element {http://cfe.dgi.gub.uy}TipoDocRecep incompatible with fixed content

What seems inappropriate is that the rejected as invalid value '2' is exactly the set value for the attribute "fixed" in type description on the schema. The same value in the parsed xml data file.

The "TipoDocRecep" type is defined in "CFEType.xsd" as follow

[here](http://bit.ly/2kTe5lP) in xml data file: ```2 ``` If I modify `CFEType.xsd` like this: ``` ``` then the xml file parse gently. [Full XSD schema](http://bit.ly/2kiKAXo), xml data file and other details can be found [here](https://bitbucket.org/emezeta/pyefuy)

[sinitsynsv]

I have the same problem

[emezeta]

The patched code works well for me. I'll testing for a while. Thanks